There's one Democrat in the House who doesn't support abortion rights. He faces a progressive challenger on Tuesday

Rep. Henry Cuellar of Texas is the lone anti-abortion Democrat left in the U.S House of Representatives. He has survived challenges from the left over the years because of his strong ties to his border district, and his appeal among constituents who share his more moderate approach. But with the Supreme Court now poised to overturn Roe v. Wade, progressives feel they have their best chance yet to defeat him.

Voters in the south Texas district will head to the polls Tuesday to choose between Cuellar and his liberal challenger, Jessica Cisneros. The contest is a runoff after neither candidate broke the 50% threshold needed to win outright in March. The race figures to test the strength of the abortion rights movement among more conservative Latino voters.

Cuellar, who was the only House Democrat to vote against the Women's Health Protection Act, maintains support from party leadership, despite calls from Cisneros to pull their support. Days after the draft Roe decision leaked, House Majority Whip Jim Clyburn of South Carolina went to Texas to campaign with Cuellar.