Minneapolis Mayor R.T. Rybak filed paperwork with the state to run for governor Thursday, according to the Star Tribune.
The long-expected move comes just two days after Rybak was easily reelected, although he had told reporters on election night his decision to run for governor was weeks away.
No Minneapolis mayor has ever won a governor's race, as Rybak joins a long list of people trying to replace Gov. Tim Pawlenty in 2010.
Rybak becomes the 12th Democrat to join the race along with eight Republicans, according to the Pioneer Press.