The state campaign finance board won't investigate the Minnesota Republican Party's allegation that Minneapolis Mayor R.T. Rybak because it lacks enough facts.

The complaint, which alleged Rybak's campaign for mayor bought a DFL voters database to benefit his gubernatorial campaign, was based on "contentions rather than statements of fact," the board said in a letter to Rybak's attorney.

Here's the letter the board sent.

Here's reaction from the Rybak campaign to the complaint last month.

Here's the GOP's complaint.