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"If Trump offers the position and is serious about it, which I think he would be after our conversations, [my wife] Callista and I would feel compelled to serve the country," the former Speaker said on Fox News's "On the Record."
 
"I think that we are at a crossroads in American history, frankly captured in part by what happened over the last few days," he added. "We're either going to clean up Washington or Washington is going to corrupt the whole country."
 
Gingrich praised the businessman as a "remarkable figure" and a "historic" presidential candidate.
 
The Georgia Republican said "five or six people are being vetted" for VP, indicating he was among them. He also said Trump will likely make a final decision next week and announce it "Thursday or Friday so they dominate the weekend news going into the convention."
 
 
Gingrich spoke at Trump's rally Wednesday night in Cincinnati and is among several potential VP picks appearing with the candidate at events this week, though some — most notably Sen. Bob CorkerRobert (Bob) Phillips CorkerGrassley: No reason to delay Kavanaugh hearing The Memo: Kavanaugh firestorm consumes political world Murkowski echoes calls for Kavanaugh, accuser to testify MORE (Tenn.) — have said they're not interested in the job.
  
Trump, who this week said Gingrich would be involved in his administration "in one form or another," is slated to campaign Friday with New Jersey Gov. Chris Christie in Miami.
 
"I think it'd be very, very hard for Callista and me not to find a way to serve the country," Gingrich said Thursday.