The high court agrees to consider fundamental questions on state and federal marriage laws
Jim DeMint will leave the Senate to help rally the conservative movement as president of The Heritage Foundation
A bipartisan group lobbies Congress for comprehensive immigration reform
A clash between GOP leaders and fiscal conservatives leads to conservatives losing key committee posts
Senate falls short in the ratification of a controversial UN disabilities treaty
Senate Republicans allow disabilities treaty to come to a floor vote as conservative groups work against its ratification
