As Texas Republicans battle with state House Democrats, who fled to block the GOP’s ability to pass new congressional maps, there’s an intraparty skirmish proceeding just as fiercely on the sidelines: the state’s contentious Republican Senate primary.

Leaders in both red and blue states are considering whether to redraw their own congressional districts to gain a partisan advantage ahead of next year's midterms.

Texas’ redistricting standoff rose to a new level Friday as Democrats once again denied a quorum to allow the House to consider the GOP-led plan and Republicans responded by threatening more punitive action.