House Minority Leader Paul Davis has officially entered the race to challenge incumbent Governor Sam Brownback.
Davis is a Lawrence Democrat and attorney.
He filed the paperwork Thursday morning, and is joined by running mate and Wichita businesswoman Jill Docking.
The two are expected to be the only Democratic candidates to file for the governor's race. The filing deadline is Monday.
Brownback and Lt. Gov. Jeff Colyer filed for re-election earlier this month.
Brownback faces a primary challenge from Wichita landscaping business owner Jennifer Winn, who has already filed for the race.