(CNN) North Carolina Republican Rep. Renee Ellmers went out with a bang Tuesday when she mocked the weight of a party activist who didn't support her re-election campaign during a stop at a polling place.

Ellmers, who lost a primary for her House seat in North Carolina's Second District to a challenger backed by conservative groups Tuesday, told a former GOP official she had "gained some weight," when she stopped to vote earlier that day.

The loss is also of note because Ellmers was opposed by conservative groups, but backed by presumptive Republican presidential nominee Donald Trump, who recorded robocalls on her behalf.

"You're eating a little bit too much pork barbecue," Ellmers said to Maggie Sandrock, a poll worker and former chairwoman of the Harnett County Republican Party. Video of the insult was caught by WNCN, a CBS affiliate in Raleigh.

According to Sandrock, Ellmers' comments was not just a little ribbing between friends. Sandrock supported her challenger, Rep. George Holding, after years of previously backing Ellmers. Holding and Ellmers ended up facing off because of redistricting.

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