A few weeks ago, at a rally in Nevada, Trump told his followers that boat manufacturers are now required to use electric engines. He claimed that someone at a boat company in South Carolina told him, “It’s a problem, sir. They want us to make all-electric boats.” (There is no such requirement.) Trump then said the South Carolinian warned him “the boat is so heavy it can’t float. Also, it can’t go fast because of the weight.” Trump continued: “So I said, ‘Let me ask you a question,’ and [the South Carolinian] said, ‘Nobody ever asked this question,’ and it must be because of MIT, my relationshi…