Donald Trump’s ad hominem attacks took a new turn on Friday when he used Rashida Tlaib’s grandmother as an excuse to insult the Democratic congresswoman from Michigan.

On Thursday, the Israeli government announced that it would not allow entry to Tlaib and Rep. Ilhan Omar (D-Minn.) because they support the pro-Palestinian Boycott, Divestment and Sanctions movement.

Tlaib asked that the decision be reversed so that she could visit her grandmother, who is in her 90s.

“This could be my last opportunity to see her,” Tlaib wrote in the letter.