Late night: Senate Democrats work to pass budget

Senators close in on immigration deal

IRS calls 'Star Trek' parody video a mistake

Senate shows support for Internet sales taxes

Gov't offers $20 million for gun background checks

Senate endorses Keystone XL pipeline construction

Line begins at high court for gay marriage cases

McCain and Schumer heading to Arizona border

Obama warns of 'enclave for extremism' in Syria

Obama withdraws appeals court pick