Most Americans would probably be dumbstruck if you asked them whether they prefer steam-powered catapults, or newer, electromagnetic models. But for President Trump, this has become a pet issue of which he simply won't let go. After appearing convinced over the Thanksgiving holiday that the new system aboard the USS Ronald Reagan - which will be used to help launch jets - President Trump again raised the issue during a tour of the USS Wasp on Tuesday, before the end of his four-day trip to Japan.

According to Bloomberg, Trump polled American troops stationed in Japan whether they preferred the old steam-powered catapults on American warships, or the new electromagnetic models. During the informal voice poll, the vote for steam was slightly louder, the reporter said. In the past, Trump has questioned whether the new electromagnetic system would work as well during wartime.

Trump polled the sailors and Marines on the USS Wasp on steam versus electric catapults Tuesday during a visit to the the Yokosuka naval base south of Tokyo, the biggest overseas U.S. naval installation.