Good Thursday morning. I'm Anna Palmer and welcome to your Politico Playbook Audio Briefing,

sponsored by Koch Industries. And I'm Jake Sherman. New narrative alert. Top Republicans who have

long been resistant to gun regulations say they are now open to banning a rapid fire device

used by the Las Vegas shooter. What's driving the potential change? Many lawmakers now believe

they have to do something.

Most every Republican aligns with the NRA, but a device that allows anyone to mow down

dozens of people is a different story. Anna was saying yesterday on the way to the Capitol,

this would be the biggest gun control measure in years, and the NRA would have a tough time

standing in the way. Supportive quotes came from conservatives like

John Cornyn of Texas, Senate Homeland Security Chairman Ron Johnson of Wisconsin, Senator John Thune, Texas

Republican Congressman Bill Flores and Senator James Langford of Oklahoma. Tom Rooney pinged us yesterday

to say Trump needs to take the lead on this bump stock issue. He's the only one that can.

Might this fall flat? Sure. He's the only one that can.

Might this fall flat? Sure. The details are very, very important. And betting against the NRA on capital year in recent years has not been a good bet. The NRA has a massive war chess

and an active membership that it is employed on multiple occasions. But many Republicans tell

us this would be a common sense gun control measure. Alex Eisenstadt and Gabe de Benedetti have an important scoop this morning on how angry

Republican donors are closing their wallets frustrated over the GOP's inability to get anything done.

Things have gotten so bad that major GOP donors have even been willing to bring up the issue

with Senate Majority Leader

Mitch McConnell at fundraisers. The backlash comes as Republicans are gearing up for the 2018

midterms, and party officials like Tom Tillis of North Carolina, who oversees fundraising for the

NRC, said donations have fallen off a cliff after the Obamacare flop.

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