He sells troops.

“We have a very good relationship with Saudi Arabia—I said, listen, you’re a very rich country. You want more troops? I’m going to send them to you, but you’ve got to pay us. They’re paying us. They’ve already deposited $1B in the bank.” pic.twitter.com/rc1f7heyCP

— Justin Amash (@justinamash) January 11, 2020