One of the best things about Trump is that, unlike most other politicians, he communicates a topline message instead of getting bogged down in policy details. But it’s one thing to remember to sell a vision and entirely another to not have any policy to bolster that vision.

Typical voters don’t care about policy nearly as much as inside-the-beltway or movement conservatives do, but if you don’t have any policy, voters will grow concerned. As of July, Trump hasn’t gotten comfortable with any policies his small team might have developed. And so he doesn’t talk about them.

Gingrich, on the other hand, understands how to blend the big vision with actual policy. It’s how he was able to win a Republican majority in 1994. The Contract With America had a topline message about Congress’ responsibility to serve Americans, and it was bolstered with very specific policy ideas.

Newt sometimes puts out weird big ideas — moon colonies, laptops for homeless people, etc. — but he actually thinks about the policy required to implement the ideas. Trump has big ideas — building a wall — but he doesn’t really understand how to craft the policy that will fix the United States’ broken immigration system.