President Donald Trump disdainfully mocked Rep. Ilhan Omar (D-Minn.) in a Las Vegas speech a day after a man proclaiming that he “loves the president” was arrested for allegedly threatening to kill her.

“A special thanks to Representative Omar of Minnesota,” Trump told members of the Republican Jewish Coalition in a ballroom of the Venetian Resort Saturday. “Oh, I forgot,” he smirked as some audience members booed. “She doesn’t like Israel. I forgot. I’m so sorry. No she doesn’t like Israel, does she? Please, I apologize.”

Patrick Carlineo, 55, of upstate New York was arrested after allegedly calling the Muslim congresswoman a “terrorist” and vowing to put a “bullet in her [expletive] skull” in a March phone call with a member of Omar’s Washington staff, according to a statement Friday by the U.S. attorney’s office for the Western District of New York.

When he was arrested Carlineo “stated that he was a patriot, he loves the president, and that he hates radical Muslims in our government,” according to the criminal complaint against him.

Trump slammed Omar as he boasted in his speech that the bond between the U.S. and Israel “has never been stronger” and argued that Democrats “aren’t fighting for Israel in Congress.” Casino magnate and mega-Trump donor Sheldon Adelson wore a red yarmulke with the president’s name emblazoned on it.