Joe Scarborough has spent the past week tweeting about #AmnestyDon, but a hashtag ain't got nothing on the kooky country music video the MSNBC host released Wednesday afternoon.

Just watch it. Now. Then remind yourself that, yes, this is a former GOP congressman singing a made-up song full of not-so-subtle penis jokes about the Republican nominee for president of the United States. Welcome to Crazytown. Population: everyone paying attention to the race for the White House.

Scarborough, in case you didn't know, is a music junkie whose dream of becoming a rock star never really died, as Vanity Fair chronicled this month. Key passage from that profile by Emily Jane Fox:

I asked him how someone who ran for office, who served in Congress, and who hosts a daily cable news show could possibly still claim to be scared of judgment. Without a beat, he responded that music is the only thing he has ever really cared about professionally.
“When I was in Congress, there were about 10 or 11 of us who were holdouts, who didn’t want to send troops to Bosnia. We were in this room with the president, the vice president, the secretary of state, the secretary of you name it. I sat there and could not have cared less. It just wasn’t what I valued,” he said, evincing a dry humor that seemed designed to amplify his inner musician. “But music, music is so important to me and my songs are so important to me. If somebody says, ‘Hey, Pete Townshend or Elvis Costello is going to be there,’ at that point I sort of dissolve.”

In June, Scarborough mentioned at the end of a podcast interview with Politico's Glenn Thrush that "right now I'm playing an awful lot. So I'm recording and playing and kind of have the headphones all the time, listening and remixing some stuff."

Now we know what he's been recording, I guess.

Focusing on the substance of Scarborough's satirical tune, for a moment, it is worth noting that this represents a somewhat new line of attack by the "Morning Joe" co-host. Scarborough has been saying for months that Trump's calls to deport all undocumented immigrants and ban all foreign Muslims from entering the United States are awful. Now, apparently recognizing those proposals are popular among many conservatives, Scarborough is mocking Trump for softening them (or softening and then re-hardening, in the case of the deportation plan).

The point of the song is to say that Trump is unprincipled and can't be trusted to keep his promises, if elected. And also, probably, to drive Donald Trump a little nuts.

Donald Trump was once seen as being a little too cozy with "Morning Joe" hosts Joe Scarborough and Mika Brzezinski. Not any more. (Peter Stevenson/The Washington Post)