GOP Presidential Primary

House Speaker John Boehner has not talked to Mitt Romney despite endorsing him and helping to solidify his standing as the likely GOP presidential nominee last week, the Republican leader revealed in an upcoming interview.

"He called and I called him back. We've kind of traded some voice mails," Boehner said in an interview with CNN’s “State of the Union” set to air Sunday. CNN released portions of the interview on Friday.

The argument is being made to coincide with the one-year anniversary of bin Laden's death.

Newt Gingrich began the first day of his final week on the campaign trail to dwindling crowds, but said he planned to "campaign through October" in support of Republican efforts.

"I'm going to look at how I can be helpful, because I suspect people will still show up to hear me," Gingrich told voters in North Carolina, according to NBC News. "Callista and I are going to campaign through October."

The former House Speaker went on to acknowledge that "the campaign will go bye-bye."

Rep. Michele Bachmann is still playing coy about a potential endorsement in the presidential election, but the Minnesota Republican is dropping hints that she is edging closer to backing presumptive nominee Mitt Romney.

"I haven't come out with an endorsement, but I have said that I want my voice to be a voice of unity and that's my goal," Bachmann said on Mike Huckabee's radio show, according to CNN. "It appears that our nominee is Mitt Romney and I will get behind that nominee."

The Tea Party darling added that she was ready to "pull in and help unify our party."

Peter Schaumber, who had been serving as a Romney adviser, allegedly received confidential information from an NLRB member.

A new ad released Thursday by the conservative super-PAC American Crossroads seeks to use President Obama's "cool" status against him, appealing to the youth vote by asking how America's "biggest celebrity" has helped them find jobs.

Obama’s team is readying to attack Romney’s foreign policy, with a new video and speech by Biden later today.

Texas Gov. Rick Perry announced Wednesday night that he would endorse Mitt Romney's presidential bid, hours after the campaign of Newt Gingrich — Perry's previous choice — announced that the former Speaker would be ending his bid for the White House.

"Mitt Romney has earned the Republican presidential nomination through hard work, a strong organization and disciplined message of restoring America after nearly four years of failed job-killing policies from President Obama and his administration," said Gov. Perry in a statement released by his campaign. "So today I join the many conservative Republicans across the nation in endorsing Mitt Romney for president and pledge to him, my constituents and the Republican Party that I will continue to work hard to help defeat President Obama."

Newt Gingrich will exit the presidential race — but not until next week, raising eyebrows about what exactly the former Speaker hopes to achieve.

A new super-PAC ad released Wednesday portrays Mitt Romney as smudged with the fingerprints of Big Oil.