Welcome to The Beat. I'm Ari Melbaugh, and we begin with what has become a fast-moving nightmare

for the Republican Party, President Trump, and their signature economic agenda.

Remember, Elon Musk is many things, but in politics, he is Donald Trump's biggest donor,

a recent employee, an ally, if you want to put it that way. And he is now an ally

turned foe on the signature issue in what is billed as the key biggest piece of legislation

that Trump and the Republicans want to pass this year. And the attacks have come fast and vicious.

It is quite a twist that upends what had already been a very unusual,

seemingly transactional alliance between the reality show president, who has often been

flexible about who he works with and takes on people who have been critical of him as long as

they say the right stuff now, and the world's richest man. So here's what's happening.

Elon Musk is going after the president's policy priority right after they held their supposedly

warm goodbye party, exit interview, whatever it's called in this Trump White House. It wasn't cake.

But we've all been to events where

employees are leaving and you say bye. This was a little different. Musk is clearly on a tear.

And as we try to do around here, we're going to show you what's happening in the evidence.

This one is really something. And you can decide or analyze why he's doing this. Is this

because he really opposes what he calls a terrible bill? Is it a mix of that and his

clear anger at how he was treated in Washington, which he said publicly? Is it a way to get back at

Donald Trump? A bromance turned a bro off that we all have to live through on the consequences?

And before we say this is too

petty, two reality show, too much billionaires tweeting into the night, it may also be,

according to some Trump critics, an important positive because the opposition sees Elon Musk for

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