U.S. President Barack Obama (R) shakes hand with Senate Republican Minority Leader Mitch McConnell before a meeting with the Senate Republicans on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. (Xinhua/Zhang Jun)

U.S. President Barack Obama reaches out to shake hand with Senate Republican Minority Leader Mitch McConnell before a meeting with the Senate Republicans on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. (Xinhua/Zhang Jun)

U.S. President Barack Obama (1st R) chats with Senate Republican leaders before a meeting with the Senate Republicans on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. (Xinhua/Zhang Jun)

U.S. President Barack Obama (R) reaches out to shake hand with Senate Republican Minority Leader Mitch McConnell before a meeting with the Senate Republicans on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. (Xinhua/Zhang Jun)

U.S. President Barack Obama (L front) leaves after a meeting with the House Democratic Caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)

U.S. President Barack Obama (C front) leaves after a meeting with the House Democratic Caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)

U.S. President Barack Obama (front) leaves after a meeting with the House Democratic Caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)

U.S. President Barack Obama (C) walks to a meeting with the House Democratic caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)

U.S. President Barack Obama (L front) chats with White House Chief of Staff Denis McDonough as he walks to a meeting with the House Democratic caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)

U.S. President Barack Obama (L) waves as he walks to a meeting with the House Democratic caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)

U.S. President Barack Obama (L) reacts as he walks to a meeting with the House Democratic caucus on Capitol Hill in Washington D.C., capital of the United States, March 14, 2013. It's the third day for President Barack Obama meeting with both Republicans and Democratics on Capitol Hill. (Xinhua/Zhang Jun)