Kevin Raye, the Republican president of Main's state Senate, will pursue a second attempt to unseat Rep. Mike Michaud (D-Maine).

Raye, a former chief of staff for Sen. Olympia Snowe (R-Maine), filed on Thursday to form an exploratory committee to run against Michaud.

Raye's first contest with Michaud came in 2002, the year Michaud was elected to the House. Raye won the GOP primary, but Michaud used his work for Snowe in the Senate to paint him as a Washington insider, and Raye lost by five points.

Michaud won his last reelection by 10 points, and the district leans Democratic, having supported President Obama in 2008 and Sen. John Kerry (D-Mass.) in 2004. But Snowe, one of the most popular Senate Republicans, will be on the ballot in November, which could give Raye a boost if he wins the primary.

The Maine Democratic Party wasted no time before unleashing opposition research on Raye, circulating reports of his consulting work for AdvaMed, a medical device manufacturer, in opposition to Obama's healthcare legislation. Revamping their attack line from 2002, Democrats questioned whether Raye's allegiance was to Washington clients or to Maine's residents.