The effects of the Supreme Court's decision in Citizens United v. the Federal Election Commission are already clear in the 2012 election.

Election spending has already far outpaced that of previous years. It dragged out the Republican primary so long many wondered if it ultimately hurt Republican nominee Mitt Romney. And negative campaign ads are more frequent and more vicious than ever before during the primary season.

We've yet to see what the effect Citizen's United will have on the general election, and that's the question the Netroots Nation panel hopes to address Friday. Moderated by the president of the Center for American Progress Action Fund, Tom Perriello, the panel brings together senators and experts to try and determine the damage Super PACs might do this election season.

The panel, features Sen. Sherrod Brown (D-OH) is defending his seat this election against Republican Josh Mandel and will speak on the panel. The panel also includes Sen. Jeff Merkley (D-OR), Sen. Sheldon Whitehouse (D-RI), former FEC chair and lawyer to Stephen Colbert Trevor Potter and CREDO Mobile Super PAC President Becky Bond.

Watch the panel live, broadcast via Netroots Nation on June 8, scheduled to begin at 3:00 p.m. Eastern.

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[Screen shot from Colbert Nation]