Charter schools are the latest source of dark money to political candidates, under the guise that it's "for the kids."

"Passion counts for a lot in politics," says an ex-state senator who has been on the receiving end.

If the Senate agrees, the GOP bill would allow nonprofit groups to shield donor names from the IRS.

A nurses union spent big for Bernie in California; Washington, DC-based conservative groups got involved in a North Carolina Supreme Court election.

The “money chase” slowly, imperceptibly influences the worldview of politicians - and no one is immune, including Hillary Clinton.

As demonstrators continue weeklong protest on Capitol Hill, an expert talks about the toll Citizens United is taking.

So far, there aren’t many Americans named in the Panama Papers. But why set up a shell company in Panama when you’ve got Delaware?

Republicans have taken direct aim at the state’s campaign-finance disclosure laws, but critics warn that the move will unleash a flood of dark money.

Thanks to Citizens United, shell companies are able to give freely to super PACs backing up presidential candidates.

Reforming the system will require more than presidential action.