The Wisconsin Supreme Court is scheduled to hear arguments Monday in a case pushed by Democrats to overturn a ruling that all but eliminated the use of absentee ballot drop boxes in the swing state.

The court’s ruling will come within three months of the Aug. 13 primary and within six months of the November presidential election. A reversal could have implications on what is expected to be another razor-thin presidential race in Wisconsin.

President Joe Biden defeated Donald Trump in Wisconsin by just under 21,000 votes in 2020, four years after Trump narrowly took the state by a similar margin.

Since his defeat, Trump had claimed without evidence that drop boxes led to voter fraud. Democrats, election officials and some Republicans argued the boxes are secure.