If Donald Trump ends up behind bars, his niece Mary Trump doesn’t think he’ll be able to cope with the new reality. In her Substack newsletter, Mary wrote about the ex-president’s New York criminal hush money trial and what the outcome might look like. “In the last hearing, the prosecution suggested that Donald was actually angling to go to jail. I find that hard to believe,” she shared. “He may like to portray himself as a tough guy, but imagine him alone in a cell, cut off from the world, without his phone. He couldn’t handle it for one night,” the psychologist continued. This is hardly the …