Texas Democratic lawmakers who fled the state to deny a quorum are making their way back, each on their own timeline, multiple sources familiar with the matter told CBS News.

Texas state Rep. Gene Wu joined a private strategy call on Thursday with Democratic leaders from other GOP-led states that might also redraw their maps.

Democratic Rep. Lloyd Doggett, the longest-serving member of Texas' congressional delegation, announced Thursday that he will retire instead of run for re-election if new congressional district boundaries aren't rejected in court after state Republicans carved up his Austin-area home district in new maps.

A plan by Texas House Democrats to block a Republican redistricting effort until the complete release of the Jeffrey Epstein files failed on Wednesday.

House Bill 4, the redistricting legislation, is the only item on the lawmakers' agenda when they reconvene on Wednesday.

The Texas State Capitol was cleared of visitors Tuesday evening and closed to the public after a social media threat, the Texas Department of Public Safety said.

Democratic state Representative Nicole Collier spent the night in the Texas Capitol building rather than agree to a police monitor amid a contentious partisan struggle over redistricting that is part of President Donald Trump's campaign to keep the national House of Representatives in Republican hands.