Tim Mak

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AUDIE CORNISH, HOST:

David Koch, one half of the billionaire duo that built one of the nation's largest privately owned companies and one of its most controversial political networks, has announced his retirement from politics and business.

In a letter to Koch Industries employees written by his brother Charles Koch, the men announced that David was stepping down due to health concerns.

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Donald Trump's lawyer Michael Cohen is facing legal peril, including an FBI raid of his home and office — and involvement in a civil lawsuit with adult film star Stormy Daniels.

But in the past, it was Cohen who sought to put legal pressure on others to solve problems for his boss.

For the first time, audio recordings of Cohen's legal threats, from a 2015 Daily Beast interview, are being published.

The net appears to be closing in on Roger Stone.

The outspoken, self-described "dirty trickster" and longtime confidant of President Trump is facing heat from congressional investigators, as well as a possible indictment from the Justice Department — or so he suspects.

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A federal judge is deciding whether to permit a lawsuit to go forward in which Democrats allege that Donald Trump's campaign colluded with Russian government's cyberattacks on the 2016 presidential election.

The parties appeared in federal court in Washington, D.C., on Thursday.

The three plaintiffs are represented by Protect Democracy, a watchdog group made up primarily of former Obama administration lawyers.

The Koch brothers are going rogue.

For years the political network funded by billionaires Charles and David Koch funded politicians on the right, laying the foundation for the libertarian causes the two support. Their support has gone almost exclusively to Republican candidates, with rare exception.

But in the era of Trump, what it means to be on the "right" is changing, and the Koch network's tactics are changing to reflect new realities.

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DAVID GREENE, HOST:

Today is the anniversary of an investigation. It was exactly a year ago when Robert Mueller was named special counsel in the Russia investigation.

RACHEL MARTIN, HOST:

Yeah, and you could say a lot has happened since.

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