Sen. John McCain, an Arizona Republican, at the annual meeting of the World Economic Forum in Davos earlier this week. His state's GOP leadership has censured him for his "disastrous" record. Ruben Sprich/Reuters/Landov hide caption

itoggle caption Ruben Sprich/Reuters/Landov

A bill proposed by the Senate's Gang of Eight (from left, Jeff Flake, R-Ariz.; Marco Rubio, R-Fla.; Charles Schumer, D-N.Y.; John McCain, R-Ariz.; Lindsey Graham, R-S.C.; Bob Menendez, D-N.J.; Dick Durbin, D-Ill.; and Michael Bennet, D-Colo.) has passed out of committee and is headed for the full Senate. But the fate of the issue in the House is less clear. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images