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The Federal Election Commission says former North Carolina Sen. John Edwards' 2008 presidential campaign should repay the Treasury $2.3 million.

After Sen. James Inhofe landed his small plane on a closed runway at a rural South Texas airport last October and sent workers on the ground scrambling, the Federal Aviation Administration ordered him to take remedial piloting lessons.

Arizona’s Sen. John McCain (R) said illegal immigrants may have started some of the wildfires that have forced thousands of people from their homes in his state, but he did not give evidence to support the statement.

Sen. John McCain, the Republican presidential candidate in 2008, took aim Sunday at the field of contenders for the 2012 GOP nomination, accusing them of "isolationism." "We cannot repeat the lessons of the 1930s, when the United States of America stood by while bad things happened in the world," McCain said in an interview with ABC's "This Week."

New financial disclosure reports are showing U.S. Sen. Scott Brown received a $700,000 book advance from publishers HarperCollins following his surprise win in Massachusetts.

Former Pennsylvania Sen. Rick Santorum, once the No. 3 Republican in the Senate, said Monday he's seeking the GOP nomination for president to protect American freedoms under threat from President Barack Obama.

Inhofe said that he had no doubt that the pictures were of Bin Laden, adding: "Absolutely no question about it. A lot of people out there say: 'I want to see the pictures,' but I've already seen them. That was him. He's gone. He's history."

Embattled Republican Sen. John Ensign of Nevada announced Thursday that he will resign amid an ongoing ethics investigation, a move that could spare him from the continued embarrassment of the closely watched probe....

As Senator Lisa Murkowski flew home to Alaska on Wednesday, The Associated Press declared her the winner of her long-shot write-in bid for re-election. Neither the Murkowski campaign nor the campaign of her competitor, Joe Miller, a Tea Party favorite who was backed by former Alaska governor Sarah Palin, made an immediate comment.

Senator Tea Party, as Jim DeMint is sometimes known, is a moniker the first-term senator began wearing before the Tea Party became a household name. It's also a description that has pushed the South Carolina Republican out of the shadows and into the forefront of electoral politics.