Ex-NH GOP chair calls Trump's voter fraud bluff with $1,000 bet
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Fergus Cullen, New Hampshire's former GOP chair, on Friday hit President Donald TrumpDonald John TrumpAssange meets U.S. congressman, vows to prove Russia did not leak him documents A history lesson on the Confederacy for President Trump GOP senator: Trump hasn't 'changed much' since campaign MORE over false voter fraud claims he said were the reason New Hampshire Sen. Kelly AyotteKelly AyotteRNC chair warns: Republicans who refused to back Trump offer 'cautionary tale' OPINION: Democracy will send ISIS to the same grave as communism Kelly Ayotte joins defense contractor's board of directors MORE lost her seat in November. 

"I will pay $1000 to 1st person proving even 1 outofstate person took bus from MA 2 any NH polling place last ElectionDay #mapoli #nhpolitics," Cullen tweeted Friday evening.

During a closed-door meeting with a group of senators from both parties on Thursday, Trump digressed from a planned discussion of Supreme Court nominee Neil Gorsuch to talk about the elections, arguing that he and Ayotte both should have won the vote in New Hampshire.

According to Trump, Ayotte's reelection bid was foiled by “thousands” of people from Massachusetts illegally casting ballots in the Granite State, meeting participants told Politico.

One source said that the room fell silent after the remark.

There is no proof of Trump's claim, and late Friday a Bush-appointed Federal Elections Commission member called on the president to show evidence for his statements so the commission could investigate.