WASHINGTON -- Sen. John McCain (R-Ariz.) on Tuesday morning took a not-so-subtle swipe at the pollsters who staffed Mitt Romney's presidential campaig...

Today's big campaign take-out from Mike Allen and Jim VandeHei involves the Mitt Romney campaign's strategy in the wake of lessons learned from 2008: ...

Sen. John McCain (R-Ariz.) openly disagreed with House Majority Leader John Boehner (R-Ohio) on Tuesday morning, saying he believed there was no probl...

WASHINGTON, D.C. -- The oft-discussed 200-page opposition research book compiled by John McCain's presidential campaign in 2008 against fellow candida...

John McCain accidentally criticized Mitt Romney for his stance on earmarks while giving a campaign speech intended to boost the Republican frontrunner...

MANCHESTER, N.H. -- The morning after his victory in Iowa, Mitt Romney's first event here in the state where he enjoys a huge home-field advantage off...

Mitt Romney got a boost from Sen. John McCain (R-Ariz.) on Wednesday afternoon, when the Arizona Republican joined Romney on stage in New Hampshire an...

Sen. John McCain (R-Ariz.) will throw his support behind former Massachusetts Gov. Mitt Romney in the race for the Republican presidential nomination....

PHOENIX — Former Massachusetts Gov. Mitt Romney will campaign with John McCain in Arizona next week. Romney and McCain were bitter rivals for t...

It was just six short months ago that Mitt Romney was the object of ridicule within John McCain's orbit. In the Republican primary, McCain argued that...