Joe Biden’s victory in battleground Wisconsin was certified Monday following a partial recount that only added to his 20,600-vote margin over President Donald Trump, who has promised to file a lawsuit seeking to undo the results.

Gov. Tony Evers, a Democrat, signed a certificate that completed the process after the canvass report showing Biden as the winner following the recount was approved by the chairwoman of the bipartisan Wisconsin Elections Commission. Evers’ signature was required by law and is typically a procedural step that receives little attention.

“Today I carried out my duty to certify the November 3rd election”, - Evers said in a statement. “I want to thank our clerks, election administrators, and poll workers across our state for working tirelessly to ensure we had a safe, fair, and efficient election. Thank you for all your good work”.