Guess who is the top outside spender on Democratic campaigns

If you guesses the SEIU, you are correct...

Via WSJ:

The Service Employees International Union has emerged as the top outside spender on Democratic campaigns this year, surpassing even President Barack Obama’s main super PAC.

SEIU, like other large entities that spend money on elections, doesn’t have to disclose all of its expenditures to the Federal Election Commission. But according to disclosures it has made so far this year, the union has funded almost $70 million of campaign donations, television ads and get-out-the-vote efforts for Mr. Obama and other Democrats.

That’s more than the nearly $54 million spent by Priorities USA, the main Democratic super PAC working to re-elect Mr. Obama.

So far this election, SEIU campaign hands have knocked on more than 2.5 million doors in eight presidential battleground states, including 400,000 in Ohio. In a development made possible by recent changes in election law, the union has spent millions of dollars trying to persuade non-union workers to vote for Democrats.