Sen. John McCain, R-Ariz. , left, walks with Sen. Mel Martinez, R-Fla. , outside the White House in Washington, Thursday, June 25, 2009, after attending a meeting with President Barack Obama to discuss immigration. From left are, McCain, Martinez, Sen. Charles Schumer, D-N.Y. , Sen. Lindsey Graham, R-S.C. , and Rep. Nydia Velazquez, D-N.Y.