Donald Trump on Saturday mocked the idea that he’s an autocrat during an Iowa rally, exclaiming at one point, “I’m a dictator!” Trump, who was recently asked if he would be a dictator and replied that he would only do so “on day one,” is now suggesting it’s ridiculous to think he would cobble power in the executive branch if he’s given a second chance at the office. Speaking at a Team Trump Iowa Commit to Caucus Rally at the DMACC Conference Center in Newton, Iowa, Trump broached the subject. POLL: Should Trump be allowed to run for office? “We’ve got to beat this guy, this fool that’s destroy…