US President

US President Barack Obama delivers remarks on the Affordable Care Act at Prince George's Community College...epa03884990 US President Barack Obama (2-R) greets supporters after delivering remarks on the Affordable Care Act, also known as 'Obamacare', at Prince George's Community College in Largo, Maryland, USA, 26 September 2013. As a possible government shutdown looms ahead, the Obama administration has blamed Congressional Republicans for attaching language to a government funding bill that would defund Obamacare.  EPA/MICHAEL REYNOLDS

Michael Reynolds/EPA

US President Barack Obama greets supporters after delivering remarks on the Affordable Care Act, also known as ‘Obamacare’, at Prince George’s Community College in Largo, Maryland. As a possible government shutdown looms ahead, the Obama administration has blamed Congressional Republicans for attaching language to a government funding bill that would defund Obamacare. 

US President Barack Obama boards Air For...US President Barack Obama boards Air Force One at Andrews Air Force Base July 25, 2013 in Maryland. Obama is traveling to Florida to speak about the economy. AFP PHOTO/Brendan SMIALOWSKIBRENDAN SMIALOWSKI/AFP/Getty Images

Brendan Smialowski/AFP

US President Barack Obama boards Air Force One at Andrews Air Force Base on Thursday in Maryland. Obama is traveling to Florida to speak about the economy.

President Barack Obama, accompanied by Democratic Massachusetts Senate candidate, Rep. Ed Markey, right, talk with patrons at Charlie's Sandwich Shoppe in Boston, Wednesday, June 12, 2013. Obama traveled to Boston to campaign for Markey in his campaign.

Evan Vucci/AP

President Barack Obama, accompanied by Democratic Massachusetts Senate candidate, Rep. Ed Markey, right, talk with patrons at Charlie’s Sandwich Shoppe in Boston on Wednesday. Obama traveled to Boston to campaign for Markey in his campaign.

Graduates of the US Naval Academy celebrate during the Naval Academy graduation ceremony at the Navy-Marine Corps Memorial Stadium on May 24, 2013 in Annapolis, Maryland. US President Barack Obama delivered the commencement address.

Mandel Ngan/AFP

Graduates of the US Naval Academy celebrate during the Naval Academy graduation ceremony at the Navy-Marine Corps Memorial Stadium on Friday in Annapolis, Maryland. US President Barack Obama delivered the commencement address.