U.S. Senate
Every state in the U.S. elects two people to represent them in the U.S. Senate, which is the upper chamber of Congress. They are elected statewide for six-year terms. Texas Sen. John Cornyn’s term is up for re-election this year. About a dozen Democrats are vying to challenge him in the November election.

U.S. House of Representatives
Texas has 36 seats in the House of Representatives, which is the lower chamber of Congress. The total number of representatives is currently set at 435; the number of seats a state is given is based on population. The average population in a congressional district, based on the 2010 census, is 710,767. That number will change with the 2020 census. Representatives are elected for two-year terms.
Texas’ 21st Congressional District runs from Southwest Austin down through San Marcos and New Braunfels to northern parts of San Antonio. The district also covers the Hill Country, including Boerne, Johnson City and Fredericksburg.
The seat is currently held by Republican Chip Roy, who was first elected in 2018. Two Democrats are running to challenge him this year, including former gubernatorial candidate Wendy Davis.

Find out more about the federal and state level primary elections from KUT here.