america

US Presidential primary voting in Maryland...epa05278084 'I voted' stickers are handed out to voters after they cast their ballots during the Maryland presidential primary election at Skyline Elementary School in Suitland, Maryland, USA, 26 April 2016. Citizens of Maryland, Pennsylvania, Delaware, Connecticut and Rhode Island are casting their votes in state primary elections today.  EPA/SHAWN THEW

Shawn Thew/EPA

‘I voted’ stickers are handed out to voters after they cast their ballots during the Maryland presidential primary election at Skyline Elementary School in Suitland, Maryland 

Hillary Clinton...Democratic presidential candidate Hillary Clinton arrives at a campaign stop, Wednesday, April 20, 2016, in Philadelphia. (AP Photo/Matt Rourke)

Matt Rourke/AP

Democratic presidential candidate Hillary Clinton arrives at a campaign stop in Philadelphia 

Brock Holt...Boston Red Sox left fielder Brock Holt (12) plays a double by Tampa Bay Rays designated hitter Corey Dickerson off the wall during fourth inning of a baseball game in Boston, Wednesday, April 20, 2016. (AP Photo/Charles Krupa)

Charles Krupa/AP

Boston Red Sox left fielder Brock Holt plays a double by Tampa Bay Rays designated hitter Corey Dickerson off the wall during fourth inning of a baseball game in Boston 

New York Stock Exchange...epa05268814 Traders work on the floor of the New York Stock Exchange (NYSE) at the start of the trading day in New York, New York, USA, 20 April 2016.  EPA/JUSTIN LANE

Justin Lane/EPA

Traders work on the floor of the New York Stock Exchange (NYSE) at the start of the trading day in New York

Low-Wage Workers Strike And Rally For $15 Wage In Chicago...CHICAGO, IL - APRIL 14:  Demonstrators demanding an increase in the minimum wage to $15-dollars-per-hour prepare to march in the streets on April 14, 2016 in Chicago, Illinois. The demonstrators marched to and protested in front of several locations during a day-long effort to draw attention to low-wage jobs. The demonstration was one of about 300 scheduled to take place nationwide today.  (Photo by Scott Olson/Getty Images)

Scott Olson/Getty

Demonstrators demanding an increase in the minimum wage to $15-dollars-per-hour prepare to march in the streets on Thursday in Chicago, Illinois. The demonstrators marched to and protested in front of several locations during a day-long effort to draw attention to low-wage jobs 

U.S. President Barack Obama and Cuba's President Raul Castro meet in Havana...U.S. President Barack Obama and Cuba's President Raul Castro hold their first meeting on the second day of Obama's visit to Cuba, in Havana March 21, 2016.     REUTERS/Carlos Barria

Carlos Barria/Reuters

U.S. President Barack Obama and Cuba’s President Raul Castro hold their first meeting in Havana on the second day of Obama’s visit to Cuba

Win McNamee/Getty

Democratic presidential candidate, Sen. Bernie Sanders addresses supporters after winning the New Hampshire Democratic primary in Concord, New Hampshire. Sanders defeated Democratic presidential candidate Hillary Clinton in the first-in-the-nation primary

A child sits on the ground and listens to U.S. Democratic presidential candidate Hillary Clinton speak to supporters during a campaign rally in Manchester, New Hampshire...A child sits on the ground and listens to U.S. Democratic presidential candidate Hillary Clinton speak to supporters during a campaign rally in Manchester, New Hampshire, February 3, 2016. REUTERS/Carlo Allegri

Carlo Allegri/Reuters

A child sits on the ground and listens to U.S. Democratic presidential candidate Hillary Clinton speak to supporters during a campaign rally in Manchester, New Hampshire

Presidential Candidate Donald Trump Holds Iowa City Campaign Rally...Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, reacts to a protester during an event in Iowa City, Iowa, U.S., on Tuesday, Jan. 26, 2016. Citing unfair treatment by Fox News, Trump will not participate in the Republican presidential debate on Thursday, his campaign manager told reporters. Photographer: Patrick T. Fallon/Bloomberg *** Local Caption *** Donald Trump

Patrick T. Fallon/Bloomberg

Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, reacts to a protester during an event in Iowa City, Iowa, U.S. 

People protest in  front of NBC studios ...People protest in  front of NBC studios while they are calling for the network to rescind the invitation to Donald Trump to host Saturday Night Live show on November 4, 2015 in New York. Trump is expected to host SNL on November 7th, but protesters plan to deliver a petition, with 460,000 signatures, calling on NBC Studios to drop Trump. AFP PHOTO/ KENA BETANCURKENA BETANCUR/AFP/Getty Images

Kena Betancur/AFP

People protest in front of NBC studios while they are calling for the network to rescind the invitation to Donald Trump to host Saturday Night Live show in New York. Trump is expected to host SNL on November 7th 

Ferguson, Missouri Marks One-Year Anniversary Of The Death Of Michael Brown...FERGUSON, MO - AUGUST 09:  Demonstrators, marking the one-year anniversary of the shooting of Michael Brown, march along West Florrisant Street in a driving rain on August 9, 2015 in Ferguson, Missouri. There are reports that two people were shot when gun fire broke out during protests later in the evening. Brown was shot and killed by a Ferguson police officer on August 9, 2014. His death sparked months of sometimes violent protests in Ferguson and drew nationwide focus on police treatment of black offenders.  (Photo by Scott Olson/Getty Images)

Scott Olson/Getty

Demonstrators, marking the one-year anniversary of the shooting of Michael Brown, march along West Florrisant Street in Ferguson, Missouri. There are reports that two people were shot when gun fire broke out during protests later in the evening. 

People join hands against the backdrop of an American flag as thousands of marchers meet in the middle of Charleston's main bridge in a show of unity after nine black church parishioners were gunned down during a Bible study, Sunday, June 21, 2015, in Charleston, S.C. (AP Photo/David Goldman)

David Goldman/AP

People join hands against the backdrop of an American flag as thousands of marchers meet in the middle of Charleston’s main bridge in a show of unity after nine black church parishioners were gunned down during a Bible study 

Demonstrators Gather Outside Baltimore Police Station to Protest Death of Freddie Gray...epa04723487 A young girl peers into a destroyed Baltimore City Police car along North Avenue near a CVS that was on fire during a protest for the death of Freddie Gray in Baltimore, Maryland, USA, 27 April 2015. Gray died of spinal cord injuries on 19 April while in police custody; the US Justice Department announced that they are launching their own investigation into the case.  EPA/NOAH SCIALOM

Noah Scialom/EPA

A young girl peers into a destroyed Baltimore City Police car along North Avenue near a CVS that was on fire during a protest for the death of Freddie Gray in Baltimore, Maryland

Protesters Hold Vigil And March Over Death Of Freddie Gray After Police Arrest...BALTIMORE, MD - ARPIL 21:  Protestors walk toward Baltimore Police Department's Western District police station during a march and vigil over the death of Freddie Gray, April 21, 2015 in Baltimore, Maryland.  Gray, 25, died from spinal injuries on April 19, one week after being taken into police custody. (Photo by Drew Angerer/Getty Images)

Drew Angerer/Getty

Protestors walk towards Baltimore Police Department’s Western District police station during a march and vigil over the death of Freddie Gray in Baltimore, Maryland 

rthur Prioleau...Rev. Dr. Arthur Prioleau holds a sign during a protest in the shooting death of Walter Scott at city hall in North Charleston, S.C., Wednesday, April 8, 2015.  Scott was killed by a North Charleston police office after a traffic stop on Saturday. The officer, Michael Thomas Slager,  has been charged with murder. (AP Photo/Chuck Burton)

Chuck Burton/AP

Rev. Dr. Arthur Prioleau holds a sign during a protest in the shooting death of Walter Scott at city hall in North Charleston, South Carolina. Scott was killed by a North Charleston police office after a traffic stop on Saturday. The officer, Michael Thomas Slager, has been charged with murder 

Alan Gross is greeted with hugs after arriving at Joint Base Andrews, Maryland in this White House handout photo...Alan Gross is greeted with hugs after arriving at Joint Base Andrews, Maryland in this December 17, 2014 White House handout photo. The United States and Cuba agreed on Wednesday to restore diplomatic ties that Washington severed more than 50 years ago, and President Barack Obama called for an end to the long economic embargo against its old Cold War enemy.  Gross spent 5 years as a prisoner in Cuba. REUTERS/Lawrence Jackson/White House/Handout via Reuters  (UNITED STATES - Tags: POLITICS) THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS

Lawrence Jackson/White House/Reuters

Alan Gross, an American imprisoned in Cuba for five years, arrives at Joint Base Andrews, Maryland. The US and Cuba agreed on Wednesday to restore diplomatic ties that Washington severed more than 50 years ago, and President Barack Obama called for an end to the long economic embargo against its old enemy. 

U.S. President Obama walks with Japan's Emperor Akihito and his wife Empress Michiko past an honour guard with Japan and U.S. flags during an official arrival ceremony at the Imperial Palace in Tokyo...U.S. President Barack Obama walks with Japan's Emperor Akihito (3rd L) and his wife Empress Michiko (L) past an honour guard with Japan and U.S. flags during an official arrival ceremony at the Imperial Palace in Tokyo April 24, 2014. Obama will use a state visit to Japan on Thursday to try to reassure Asian allies of his commitment to ramping up U.S. engagement in the region, despite Chinese complaints that his real aim is to contain Beijing's rise. REUTERS/Jim Watson/Pool

Jim Watson/Reuters

US president Barack Obama with Japan’s emperor Akihito and empress Michiko pass an honour guard during an arrival ceremony at the Imperial Palace in Tokyo 

Largest Freefall Formation world record attempt in Arizona USA...epaselect epa04150210 222 skydivers from World Team attempt to break the world record for the Federation Aeronautique Internationale (FAI) Largest Sequential Freefall Formation attempt at Skydive Arizona in Eloy, Arizona, USA, 01 April, 2014.

Roy Dabner/EPA

222 skydivers from World Team attempt to break the world record for the Federation Aeronautique Internationale (FAI) Largest Sequential Freefall Formation attempt at Skydive Arizona in Eloy, Arizona, US on Monday. 

U.S. President Barack Obama waves as he leaves Rome's airport...U.S. President Barack Obama waves as he leaves Rome's airport March 28, 2014. REUTERS/Giampiero Sposito  (ITALY - Tags: POLITICS)

Giampiero Sposito/Reuters

U.S. President Barack Obama waves as he leaves Rome‘s airport. 

US First Lady Michelle Obama (C) perform...US First Lady Michelle Obama (C) performs "tai chi" with students from the Chengdu No7 High School in Chengdu in China's southwest Sichuan province on March 25, 2014. Michelle Obama arrived in China on March 20 with her mother and daughters to kick off a seven-day, three-city tour where she will focus on education and cultural exchange.   AFP PHOTO / Peter PARKSPETER PARKS/AFP/Getty Images

Peter Parks/AFP

US First Lady Michelle Obama performs t’ai chi with students from the Chengdu No 7 High School in Chengdu, in China’s southwest Sichuan province. Michelle Obama arrived in China last week with her mother and daughters to start a seven-day, three-city tour where she will focus on education and cultural exchange.