Former President Donald Trump blasted VP Kamala Harris on immigration in a Fox News Town Hall making the case that “she was in charge of the border” as illegal immigration surged to record levels in recent years.“They want open borders,” Trump told Fox News’ Sean Hannity in a town hall event on Wednesday night. “She wants open borders. Now she’s all of a sudden said, oh, I think we’re closing the borders. She was the border czar, whether you like it or not, but even if you don’t want to use that term. She was in charge of the border.”“It’s the worst border in the history of the world, not just here. There’s never been a country that allowed 21 million people …