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This post was updated at 4:25 p.m.

In a shocking move Thursday afternoon, House Majority Leader Kevin McCarthy, R-Calif., pulled out of the race for speaker of the House, throwing the GOP leadership race into chaos and confusion.

According to Republican congressmen coming out of the caucus meeting — where lawmakers were expected to pick a successor to retiring House Speaker John Boehner — McCarthy told Republicans he didn't have a path to victory.

"Thelonious Monk is the most important musician, period," Jason Moran says. He laughs out loud. "In all the world. Period!"

Moran is in a dressing room deep within the John F. Kennedy Center for the Performing Arts in Washington, D.C., where he's the artistic director for jazz. He's not really wearing that hat at the moment, though. He's talking as a musician himself — and very personally, at that.

A bill proposed Wednesday by two U.S. senators would require drugmakers and medical device manufacturers to publicly disclose their payments to nurse practitioners and physician assistants for promotional talks, consulting, meals and other interactions.

These are critical days for the presidential campaign of Jeb Bush.

The former Florida governor has been traversing Iowa this week, in effect reintroducing himself to voters, with the first-in-the-nation caucuses in that state now less than four months away.

This is not where Bush and his advisers expected to be when he got into the race early this year. Back then he was quickly labeled the front-runner — the man to beat.

No one calls Bush that anymore, with the topsy-turvy, crowded GOP field and its outsiders named Trump, Carson and Fiorina sitting atop the polls.

Updated at 1:57 p.m. ET.

Corrections officials in Oklahoma used the wrong drug to execute Charles Warner back in January.