Democrats lost an effort to have the committee hold a public hearing on the legislation, which would amend the Pennsylvania Constitution.
Lawyers and judges around the state are already lining up supporters and trying to figure out if they can raise enough money to win.
As early as May 18's primary election, Pennsylvania voters could be asked to overhaul how they elect state Supreme Court justices and appellate court judges.
The decision was tentatively celebrated by voting rights advocates, but also underscored significant concerns over what the impending confirmation of Judge Amy Coney Barrett could mean for the Court.
The court, which ruled last week that mail-in ballots can be counted if they arrive at local elections offices by Nov. 6, refused a request from Republicans to put its order on hold.
The court filing comes just days after President Trump openly admitted he's undermining the Postal Service in order to make it harder to process mail-in ballots.
Gov. Tom Wolf's administration is asking the state Supreme Court to order that ballots postmarked by 8 p.m. on Nov. 3 be counted if they are valid and received during the three days following the election.