Greg Abbott's special session agenda includes the redrawing of congressional districts mid-decade. This comes after the U.S. Department of Justice sent a letter to the governor and attorney general saying three Houston districts and one Fort Worth district are "unconstitutional ‘coalition districts'" and are racially drawn.

The effort could help Republicans maintain control of Congress next year. But it may also leave incumbents vulnerable to new Democratic challenges.

Republican Texas Gov. Greg Abbott said Wednesday that tackling redrawing the state's congressional maps would be part of an special legislative session later this summer as Republicans seek to hold on to their narrow U.