Peter Overby As NPR's correspondent covering campaign finance and lobbying, Peter Overby totes around a business card that reads Power, Money & Influence Correspondent. Some of his lobbyist sources call it the best job title in Washington.

The Justice Department has entered settlements for two cases related to IRS scrutiny of groups seeking tax-exempt status. Karen Bleier/AFP/Getty Images hide caption

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Karen Bleier/AFP/Getty Images

A lawsuit against President Trump alleges he is violating the Foreign and Domestic Emoluments clauses of the Constitution. Plaintiffs' lawyer Deepak Gupta says Trump's Washington hotel (above) is "an emoluments magnet." Paul J. Richards/AFP/Getty Images hide caption

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Emoluments Hearing Hints At What May Be At Stake: Trump's Tax Returns

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Federal Judge Hears Arguments In Emoluments Clause Lawsuit Against Trump

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Citizens for Responsibility and Ethics in Washington filed a suit just three days after President Trump took office. The suit alleges he is violating the Constitution's ban on accepting foreign payments, or emoluments. Win McNamee/Getty Images hide caption

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The Court Challenge Begins: Is Trump Taking Unconstitutional Emoluments?

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The Treasury inspector general for tax administration has found that the IRS targeted not just conservative groups but also scores of organizations with words like "progressive" in their names. Brendan Smialowski/AFP/Getty Images hide caption

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IRS Audit Counters Claims Of 'Witch Hunt' Targeting Conservatives

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Just two years ago, a former Trump International Golf Club in Puerto Rico filed for bankruptcy. The insolvency filing came less than a month after Trump had announced he would run for president, basing his qualifications on his skills as a businessman. Michael Cohen/Getty Images hide caption

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Secretary of Health and Human Services Tom Price, joined by White House press secretary Sarah Huckabee Sanders, speaks to media aboard Air Force One. Price has reportedly spent more than $400,000 of public money on trips using private aircraft. Carolyn Kaster/AP hide caption

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Carolyn Kaster/AP

In August, Anne-Marie Slaughter, the president and CEO of the think tank New America, closed down a program that studied monopolies and how to fight them. The decision landed the think tank in the middle of the industry's latest money controversy. Paul Morigi/Getty Images for Fortune/Time In hide caption

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Paul Morigi/Getty Images for Fortune/Time In

Who Controls Think Tanks? Shift In Funding Highlights Changes In The Industry

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White House staffers may need assistance from a legal defense fund if special counsel Robert Mueller's Russia probe pulls them in for questioning. Brendan Smialowski/AFP/Getty Images hide caption

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Brendan Smialowski/AFP/Getty Images

Lawsuit Against Trump Starts The Battle To Define 'Emolument'

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