AUSTIN, Texas (CBSDFW.COM) – With 67% of precincts reporting, Candace Valenzuela leads Kim Olson in the Democratic Primary runoff for the U.S. House District 24 seat 57% to 43%.

District 24 covers northeast Tarrant, northwest Dallas and southeast Denton County.

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Republican Representative Kenny Marchant is retiring.

Candace Valenzuela was elected to the Carrollton Farmers Branch ISD as a board member in 2017.

Kim Olson was in the U.S. Air Force from 1979-2005. She retired from USAF as a colonel.

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She served on the Weatherford ISD School Board from 2007-2011.

Olson won the Democratic primary election 40% to Valenzuela 30% which led to the runoff.

The winner takes on Republican candidate Beth Van Duyne.

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She is the former Irving Mayor and former regional administrator of HUD in the President Trump administration.