Mary Trump mocked her uncle after he picked Sen. J.D. Vance (R-OH) as his running mate. In a column on Thursday, Ms. Trump noted that the former president bragged about hiring “the best people” — but that Vance has proven to be a “disastrous running mate” after only three weeks. “He’s an angry and charmless man who can’t even answer a simple question about what makes him happy without getting hostile,” she wrote. “Donald may be suffering from the quickest case of buyer’s remorse since John McCain picked Sarah Palin to be his running mate.” Want more breaking political news? Click for the lates…