Justice Samuel Alito, who handles emergency appeals from Pennsylvania, rejected the request from GOP legislative leaders and voters to put on hold an order from the state Supreme Court intended to produce new congressional districts in the coming two weeks.

The Pennsylvania high court ruled last month that the current map of 18 districts violates the state constitution because it unfairly benefits Republicans.

The decision comes just four days before the Republican-controlled Legislature's deadline for submitting a replacement map for Democratic Gov. Tom Wolf to consider. So far, there has been a notable lack of bipartisan movement on getting such a deal.

Pennsylvania's congressional delegation has been 13-5 in favor of Republicans during the three election cycles since the GOP-drawn 2011 map took effect, and experts have said those 13 seats are several more than would have been produced by a nonpartisan map.

Democrats have about 800,000 more registered voters than Republicans and hold all three elected statewide row offices, but Republicans enjoy solid majorities in both chambers of the Legislature.

Under the process laid out two weeks ago by four of the seven Pennsylvania Supreme Court justices, all Democrats, the Legislature has until Friday to approve a new map, after which Wolf will have until Feb. 15 to decide whether to endorse it and submit it to the justices.

Senate Republican Leader Jake Corman said Monday he's had "zero" discussions with Wolf and legislative leaders about new district boundaries and could not guarantee he will meet the deadline.

The state Supreme Court said it expects new districts to be in place by Feb. 19, and the new map is expected to be in play for the May 15 congressional primaries.