(CNN) — Republican Rep. Marjorie Taylor Greene said Sunday she will stop using “toxic” rhetoric, marking what would be a dramatic shift in a political brand hallmarked by derogatory comments.

The commitment comes amid a rift with Donald Trump that has spilled into public view , with the president attacking the Georgia Republican personally. Greene, meanwhile, has pivoted away from the Republican Party more broadly recently, criticizing the GOP on a number of fronts, including the party’s handling of the government shutdown.

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