A push to seat Al Franken as Minnesota's senator moved from the internet to the interstate.

The coalition of groups behind the web site SeatOurSenator.com, has purchased a roadside billboard.

The billboard urges Governor Pawlenty to certify Franken as the winner of Minnesota's U.S. Senate race. Pawlenty has said he will not sign an election certificate until the legal process is complete.

The billboard is located off Interstate 94 and Snelling Avenue in St. Paul.

The coalition is made up of Americans United for Change, Alliance for a Better Minnesota, MN AFL-CIO, AFSCME Council 5, Working America, SEIU MN State Council.

Following a court ruling, Franken leads Norm Coleman, who was the incumbent, by 312 votes.

Coleman appealed the decision to the state supreme court.

A Franken-win would give the Democrats a filibuster-proof 60th vote in the U.S. Senate.

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