Wisconsin’s Democratic governor, Tony Evers, announced Thursday that he will not seek a third term, creating the first open race for governor in the battleground state in 16 years. It will be Wisconsin’s highest profile race next year, as Democrats also angle to take control of the Legislature thanks to redrawn election maps that are friendlier to the party. They are also targeting two congressional districts as Democrats nationwide try to retake the House. In a video announcing his decision, Evers said he was “damn proud” of working 50 years in public service. But he said it was time to focus on his family.