U.S. Sen. John McCain will run for a fifth term in the Senate, Roll Call is reporting.

"After much speculation that his failed presidential bid would be his last campaign, Sen. John McCain (R-Ariz.) has decided to run for re-election to his Senate seat in 2010," according to the D.C.-based paper.

CNN also reported Tuesday that McCain has revived his candidate PAC, an almost certain sign he's going to run again.