The intensifying threat of Donald Trump’s emoluments

CREW filed a complaint last week with the IRS against a nonprofit that is a supposed "social welfare organization"—and therefore doesn't have to disclose its donors—but clearly exists almost entirely to support Sen. Marco Rubio's presidential campaign.

A couple weeks ago, CREW filed a complaint against the Michigan Advocacy Trust, a secretive political organization that is spending millions of dollars on TV ads while refusing to disclose its donors—despite the fact that the law requires them to.

It's been three years since CREW filed several complaints with the FEC alleging that Murray Energy illegally coerced employees to contribute to the company's PAC and forced employees to attend a Republican presidential rally.

Following an FEC complaint about inaccurate filing, freshman Arizona Congressman Ruben Gallego settled with the organization for $2,000.

One of the top groups contributing to the battle for North Carolina's Senate seat in 2014 was Carolina Rising, a nonprofit organization that spent millions to run nearly 4,000 TV ads.