Democratic Party officials filed lawsuits in four states this week against presidential candidate Donald Trump and the Republican Party, accusing campaign officials and supporters of seeking to threaten minorities to keep them from voting.

With the bitter election just days away from a seeming conclusion, these lawsuits were part of a flurry of legal action that could alter what voters experience on Election Day and how party officials can approach voters going forward.

The federal lawsuits in four battleground states – Arizona, Nevada, Ohio and Pennsylvania – arrived just over a week before Election Day.