Out of nowhere, the president tweeted this today:

Sylvester Stallone called me with the story of heavyweight boxing champion Jack Johnson. His trials and tribulations were great, his life complex and controversial. Others have looked at this over the years, most thought it would be done, but yes, I am considering a Full Pardon!

— Donald J. Trump (@realDonaldTrump) April 21, 2018

Jack Johnson was the first black man to be world heavyweight boxing champion. His fights against white boxers led to deadly riots. He had relationships with a number of white women, several of whom he married. He was ultimately arrested on trumped-up charges that he violated the Mann Act, which prohibited transporting a woman across state lines for immoral purposes, even though the alleged violations took place before the law was passed. He was convicted by an all-white jury and sentenced to a year and a day in prison; he fled the country for several years, then ultimately returned and served time in Leavenworth.

So why this all of a sudden? Maggie Haberman thinks she knows why:

It’s almost like there’s a value right now in reminding some folks he has this power https://t.co/IUv4SdBUcY

— Maggie Haberman (@maggieNYT) April 21, 2018

Early today, I tweeted a different theory:

He must be asking everyone he knows for the names of people he can pardon for seemingly altruistic reasons, because he thinks if he does that he can get away with pardoning a lot of current and former associates to save his own ass. https://t.co/qlrXVQWbzH

— Steve M. (@2usatoday4) April 21, 2018

I don't which of these theories makes more sense -- or maybe we're both right.

I don't understand why Trump would need to wave his pardon power in front of people's noses -- maybe it's a case of Trump thinking, "Many people don't know that I can pardon anyone who's committed a federal crime," meaning he only recently learned that. Whatever he thinks, we actually do understand that he can try to hinder the Mueller investigation by issuing pardons. But I'm sure he doesn't know that people understand that.

I'm having second thoughts about my theory, because how often has Trump cared whether people think he appears altruistic? But this could be a rare instance of that. And he might want to pretend not to be a racist. (The racists I've ever encountered have been fine with black people who are athletes, because, y'know, that's what black people are supposed to do.)

There's this, too:

and the name dropping

— Scooter Trash (@stevekmartin) April 21, 2018

Yup -- Trump is president of the United States, but he really wants us to be impressed by the fact that he's friends with Sylvester Stallone.

I'm in favor of this pardon, so I hope no one tells Trump this:

Johnson's great-great niece wants President Trump to clear the champion's name with a posthumous pardon. And she has the backing of Sen. John McCain (R-Ariz.), who has supported a Johnson pardon since 2004.

"Jack Johnson was a boxing legend and pioneer whose career and reputation were ruined by a racially charged conviction more than a century ago," McCain said in a statement to the Associated Press. "Johnson's imprisonment forced him into the shadows of bigotry and prejudice, and continues to stand as a stain on our national honor."

If Trump finds out McCain's in favor of this, he'll never do it -- although maybe the fact that President Obama chose not to pardon Johnson coungts more than the fact that McCain is in favor of the pardon.