Kellyanne Conway, the adviser to President Trump who coined the phrase “alternative facts,” is facing another round of criticism and fact-checking after she falsely spoke of a “Bowling Green massacre” by Iraqi refugees. She acknowledged and corrected her statement Friday morning on Twitter.

Ms. Conway made the comment during an appearance on MSNBC’s “Hardball” on Thursday night as she discussed with the host, Chris Matthews, the executive order by Mr. Trump that suspended immigration from seven Muslim-majority countries.

“I bet it’s brand new information to people that President Obama had a six-month ban on the Iraqi refugee program after two Iraqis came here to this country, were radicalized and were the masterminds behind the Bowling Green massacre,” she said. “Most people don’t know that because it didn’t get covered.”