By Ariane de Vogue and Devan Cole, CNN
(CNN) -- The Supreme Court on Monday denied an appeal from Republicans challenging a Pennsylvania Supreme Court decision that allowed ballots received up to three days after Election Day to be counted to accommodate challenges by the coronavirus pandemic.
The court's action is the latest sign that the justices have no interest in cases concerning the 2020 election results. Lawyers for Republicans had argued that the state court exceeded its authority and should have let stand an Election Day deadline passed by the state legislature. Democrats responded that the state court was within its authority to protect the right to vote amid a pandemic.
Justices Clarence Thomas, Samuel Alito and Neil Gorsuch, all conservative members of the court, dissented from Monday's order.
Last October,the justices denied a request from Pennsylvania Republicans to review the decision on an accelerated basis, the second time the court considered the Pennsylvania issue.
The ballots at issue amounted to about 10,000 votes -- a number not large enough to have impacted President Joe Biden's victory in the state.
The case arising out of the battleground state has been of keen interest to voting rights experts who want to see if the Supreme Court might put limits on what state courts can do when interpreting their own laws. Before the election, the justices already signaled to federal courts that they should not step in to change rules too close to an election.
The Republicans behind the challenge acknowledged that they weren't challenging 2020 election results. But they said that the state Supreme Court, in allowing a change to ballot deadlines, usurped the authority of the state legislature.
Lawyer John M. Gore of Jones Day told the justices that the Constitution reserves "a special role" for state legislatures "in setting the rules for federal elections." In the case at hand, they said the Pennsylvania Supreme Court "impermissibly altered election rules that are under the purview of the state legislature."
Lawyers for Pennsylvania Democrats told the justices that the state court's reliance on the state constitution to "make a sensible, modest adjustment of mail-in voting procedures in response to an extraordinary public health crisis and the U.S. Postal Service's self-declared shortcomings" should not raise constitutional concerns.
They also argued that since the dispute concerned the now-concluded 2020 election it has "no enduring significance" and should be considered moot.
In total, the justices on Monday rejected eight cases. Only in the cases brought by Pennsylvania Republicans did some of the justices publicly dissent.
This story has been updated.
™ & © 2021 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.
for more features.