Never gonna happen. I am a highschool "kickout", can't speak good, oh yeah- an I would never try. But if I did I have a very short list of goals, then I would do nothing. Vote Ben!

The US will adopt the metric system. 16mm to an inch, 12 inches to a foot, 3 feet to a yards, 5280 feet in a mile... WTF?! Metric is vastly superior.

The US will abolish daylight savings. With "modern" tech like electricity, daylight savings is silly. If energy reduction is a prioity this is not an optimal solution, it is a crappy hack at best. People (and businesses) should be smart enough to figure out optimal times. 

The US will abolish time-zones. Time-zones are a hold-over from the railroad age. I don't care if breakfast is at 7 am, 11 pm, or 14.3 alpha, I will eat breakfast at the same time every day. This will be about an hour after I awake, which is about an hour after the sun comes up. Give it whatever number or name you want.

Rest for 3 years and 362 days.