Which of the staunchly conservative judges should President Trump choose for his Supreme Court nominee? Watch the video above to hear Harvard law professor emeritus Alan Dershowitz give his advice for President Trump on the best pick-Thomas M. Hardiman, Brett Kavanaugh, Raymond Kethledge or Amy Coney Barrett. Plus, Dershowitz details why asking potential nominees about religion goes against the Constitution and why in part the framers never could have imagined what the length of a modern day Supreme Court justice's term. "When we set up lifetime appointments to the Supreme Court, we expected people to be appointed at 50 and die at 55," Dershowitz told SalonTV. "Today people are being appointed at 40 and they're going to die at 95. I don't think the framers contemplated anybody would serve as a judge for 50 years."