TAMPA, Fla. (AP) — Amid the "Trump 2020" placards, the "Women for Trump" signs and the "CNN SUCKS" T-shirts, the most inscrutable message that came out of Donald Trump's Tampa rally on Tuesday evening was a letter.

Q.

People wore T-shirts with the letter emblazoned on the front. Others carried signs containing the letter: "Q WWG1WGA Trump 2020 Keep America Great! MSM is the enemy." Another held a dog-eared and slightly crumpled piece of paper in the air. It said, simply, "We are Q."

Q who?

The entire, loose movement has been called everything from "a deranged conspiracy cult" (The Washington P...