The Virginia Supreme Court has again ruled that voters will get to cast ballots on a congressional redistricting plan that could help Democrats in this year’s midterm elections. The court said Wednesday that the April 21 referendum can go forward while it considers a legal challenge to the redistricting plan. Early voting for the referendum is supposed to begin Friday. It comes after the court made a similar ruling in February stemming from another tangential civil action. The Supreme Court agreed to hear that case, though it won’t be resolved before the April referendum. The Virginia plan is part of a national redistricting battle between some Republican and Democratic states.