Labor Unions Sixty percent of the top billionaires contributing to political causes are Democrats or progressive liberals. Flying under the radar are the largest political donors on planet earth: unions.

Unions top the list of organizations donating to political causes — and large corporations are behind them. Fourteen of the top 25 political donors are unions, and virtually all donate exclusively to Democratic candidates.

Democrats also have the largest single donor source of any kind over the past 25 years: a PAC called ActBlue. Launched in 2004, ActBlue has amassed an incredible fortune of $1.1 billion, with only $100 million spent thus far.

Massive labor unions like SEIU wield enormous power and spend vast amounts electing candidates that further their agenda. And if going through legals channels doesn’t suit their purposes, they’re more than willing to use other means. Former SEIU president Andy Stern has said, “We’ve been trying to use the power of persuasion, and if that doesn’t work, we use the persuasion of power, because there are governments and there are opportunities to change laws…”

Stern and SEIU have unabashedly put up tens, even hundreds of millions of dollars, for government healthcare and amnesty. Stern, the president of an international union, was the top visitor at the White House during Obama’s first year in office, with a record 22 visits. AFL-CIO president Richard Trumka visited the White House two to three times weekly and talked daily to someone in the White House. No one else has had that kind of to President Obama, including most members of Obama’s cabinet, some of whom have had zero contact with him.

SEIU tops the list of labor union donors at $232 million, with 99 percent going to Democrats. The National Education Association is second, followed by the American Federation of State, County, and Municipal Employees. Then the Farr Group, an executive search consulting firm. The Carpenters Union and the American Federation of Teachers round out the top six groups for political contributors, all of which gave nearly every dime to Democrats. In fact, eight of the top ten, and 18 out of the top 25 are Democratic donors.

Believe it or not, the NRA has also donated to Democrats. Of the $22 million donated since 2002, 17 percent has gone to Democrats.