The Democrats go nuclear and finally crack the ice on what has amounted to a hiring freeze, since President Obama took office.

Senate Democrats made a major change to Senate rules yesterday, and may have also destroyed any chance for a budget compromise.

Congress did not strike a deal last night on a spending bill, which means a government shutdown is now in effect.

Recommendations from senators to the Finance Committee as to which tax breaks they favor and which they oppose will be kept secret.

Colorado's junior senator and member of the Senate's 'Gang of Eight' discusses the push for immigration reform.

A bipartisan group of Senators is unveiling the outlines of a major immigration reform plan today.

With U.S. Sen. John Kerry on the short list to become Secretary of State, Massachusetts could be in line for its third U.S. Senate election in just more than two years. It's meant big bucks spent in advertising.

Allen campaign decries 'scare tactics' in race for U.S. Senate in Virginia

Ads target Florida, Arizona, Ohio, Indiana and Virginia

Conservative political nonprofit continue to blanket airwaves with attack ads in Senate races.