US politics

TOPSHOT - US First Lady Michelle Obama cheers during the White House Turnaround Arts Talent Show at the White House May 25, 2016 in Washington, DC.  Students from throughout the US performed at the presidential mansion showcasing the power of arts education.  / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

Brendan Smialowski/AFP/Getty

US First Lady Michelle Obama cheers during the White House Turnaround Arts Talent Show at the White House in Washington D.C. Students from throughout the US performed at the presidential mansion showcasing the power of arts education 

Orange County Sheriff's deputies take a protester into custody outside the Anaheim Convention Center where Republican presidential candidate Donald Trump held a rally

Jae C. Hong

Orange County Sheriff’s deputies take a protester into custody outside the Anaheim Convention Center where Republican presidential candidate Donald Trump held a rally

A U.S. Capitol Police officer humorously reacts to Code Pink for Peace activist Medea Benjamin's protest sign

Chip Somodevilla/Getty Images

A U.S. Capitol Police officer reacts to a Code Pink for Peace activist’s protest sign

Supporter Raena Fisk of Orange County sleeps on the floor in reindeer pajamas after arriving before 5 AM to attend a morning rally for U.S. Democratic presidential candidate Bernie Sanders in Anaheim, California, U.S., May 24, 2016. REUTERS/Mike Blake

Mike Blake/Reuters

Supporter Raena Fisk of Orange County sleeps on the floor in reindeer pajamas after arriving before 5 AM to attend a morning rally for U.S. Democratic presidential candidate Bernie Sanders in Anaheim, California.

TOPSHOT - US Democratic presidential candidate Bernie Sanders speaks during a rally at Santa Monica High School Football Field in Santa Monica, California, on May 23, 2016. Democratic presidential frontrunner Hillary Clinton on May 23 rejected an invitation to take part in a final campaign debate against her rival Bernie Sanders, her campaign said. / AFP PHOTO / Ringo ChiuRINGO CHIU/AFP/Getty Images

Ringo Chiu/AFP/Getty

Democratic presidential candidate Bernie Sanders speaks during a rally at Santa Monica High School Football Field in Santa Monica, California

Senator Bernie Sanders, an independent from Vermont and 2016 Democratic presidential candidate, speaks during a campaign event in Carson, California, U.S., on Tuesday, May 17, 2016. Sanders won the Democratic presidential primary in Oregon Tuesday while Hillary Clinton claimed victory in a closely fought contest in Kentucky, a split decision that will do little to change the nomination race but may delay the party from focusing on the general election. Photographer: Patrick T. Fallon/Bloomberg *** Local Caption *** Bernie Sanders

Patrick T. Fallon/Bloomberg

Senator Bernie Sanders, an independent from Vermont and 2016 Democratic presidential candidate, speaks during a campaign event in Carson, California 

People walk past a mural on a restaurant wall depicting US  Presidential hopeful Donald Trump and Russian President Vladimir Putin greeting each other with a kiss in the Lithuanian capital Vilnius

Petras Malukas/AFP

People walk past a mural on a restaurant wall depicting US Presidential hopeful Donald Trump and Russian President Vladimir Putin greeting each other with a kiss in the Lithuanian capital Vilnius 

Presidential Candidate Bernie Sanders Holds Atlantic City Campaign Rally...An attendee with a campaign sticker on her phone takes video as Senator Bernie Sanders, an independent from Vermont and 2016 Democratic presidential candidate, not pictured, speaks during a rally at Boardwalk Hall in Atlantic City, New Jersey, U.S., on Monday, May 9, 2016. Atlantic City, the struggling casino hub weeks away from bankruptcy absent state action that has been hit hard by the decline of its dominant industry, is a fitting platform for Sanders populist message on how corporations reap profits while urban areas are neglected. Photographer: Andrew Harrer/Bloomberg

Andrew Harrer/Bloomberg

An attendee with a campaign sticker on her phone takes video as Senator Bernie Sanders as he speaks during a rally at Boardwalk Hall in Atlantic City, New Jersey

Republican presidential candidate Donald Trump and his wife Melania Trump arrive to speak to supporters at Trump Tower in Manhattan following his victory in the Indiana primary

Spencer Platt/Getty Images

Republican presidential candidate Donald Trump and his wife Melania Trump arrive to speak to supporters at Trump Tower in Manhattan following his victory in the Indiana primary

With his family by his side, Republican presidential candidate Sen. Ted Cruz (R-TX) speaks during his election night watch party at the Crowne Plaza Downtown Union Station where he announced he was suspending his bid for the Republican presidential nomination

Scott Olson/Getty Images

With his family by his side, Republican presidential candidate Sen. Ted Cruz (R-TX) speaks during his election night watch party at the Crowne Plaza Downtown Union Station where he announced he was suspending his bid for the Republican presidential nomination

Sheriffs on horseback and police break up a group of demonstrators outside Republican U.S. presidential candidate Donald Trump's campaign rally in Costa Mesa

Mike Blake/Reuters

Sheriffs on horseback and police break up a group of demonstrators outside Republican U.S. presidential candidate Donald Trump’s campaign rally in Costa Mesa, California.

Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, center, speaks during a campaign event in New York

John Taggart/Bloomberg

Carlos Barria/Reuters

Republican U.S. presidential candidate Donald Trump’s hand is seen as he reacts during a campaign event in Harrisburg, Pennsylvania

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 

Hillary Clinton...A Secret Service Agent stands guard as Democratic presidential candidate Hillary Clinton speaks at the Corsi senior center, Friday, April 15, 2016, in New York. (AP Photo/Mary Altaffer)

Mary Altaffer/AP

A Secret Service Agent stands guard as Democratic presidential candidate Hillary Clinton speaks at the Corsi senior center, 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 

A man takes a photograph of the stage before a campaign event featuring Republican presidential candidate Donald Trump at St. Norbert College in De Pere, Wisconsin, USA

Patrick Semansky/AP

A man takes a photograph of the stage before a campaign event featuring Republican presidential candidate Donald Trump at St. Norbert College in De Pere, Wisconsin, USA

Tim Ferris shades himself from the sun while waiting in line to attend a campaign rally with Democratic presidential candidate, Sen. Bernie Sanders, in Kissimmee, Florida, USA

Phelan M. Ebenhack/AP

Tim Ferris shades himself from the sun while waiting in line to attend a campaign rally with Democratic presidential candidate, Sen. Bernie Sanders, in Kissimmee, Florida, USA

Marco Rubio...Republican presidential candidate, Sen. Marco Rubio, R-Fla., poses for photographs during a campaign rally in Hialeah, Fla., Wednesday, March 9, 2016. (AP Photo/Paul Sancya)

Paul Sancya/AP

Republican presidential candidate, Senator Marco Rubio, poses for photographs during a campaign rally in Hialeah, Florida 

Barack Obama...President Barack Obama meets with members of his economic team in the Roosevelt Room of the White House in Washington, Friday, March 4, 2016. Obama spoke about U.S. employers adding 242,000 workers in February, driving another solid month for the resilient American job market.

Pablo Martinez Monsivais/AP

President Barack Obama meets with members of his economic team in the Roosevelt Room of the White House in Washington. Obama spoke about U.S. employers adding 242,000 workers in February, driving another solid month for the resilient American job market