Biden swears in Sen. William Cowan

Cowan was selected by Gov. Deval Patrick (D-Mass.) to temporarily fill Kerry’s former seat. A special election will be held in June to decide who will serve Massachusetts on a longer-term basis. 

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Rep. Ed MarkeyEd MarkeyThe Hill's 12:30 Report Overnight Energy: Obama drinks Flint water during visit New House caucus will help keep hackers out of cars MORE (D-Mass.) has announced that he will run in the special election. Former Sen. Scott Brown (R-Mass.) has said he won’t run.

Kerry, who attended the swearing in, left the Senate to serve in President Obama’s cabinet as secretary of State. The Senate overwhelmingly confirmed Kerry for the position last week.

Members of the chamber applauded as Cowan signed the oath of office. Sen. Tim ScottTim ScottAyotte alarmed by sped-up Gitmo reviews CBS News lands Sanders as WHCA dinner guest Department of labor overtime rule is a roadblock to a bright career path MORE (R-S.C.), the only other African American currently serving in the Senate, was one of the first people to shake Cowan's hand after he was sworn in.

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