Although Democrats now control a trio of House seats representing Texas’ southern-most border with Mexico, voting patterns are making the districts more competitive.

Republicans are heavily targeting all three seats after the 2020 election showed a surprising swing in the GOP’s favor along the Texas-Mexico border. Once deep-blue, the three districts voted for Biden by just two to four percentage points, down from the 17-to-22-point margin Hillary Clinton racked up in 2016. Republicans also have redistricting on their side this year with the GOP-controlled Texas legislature poised to redraw several congressional districts in their favor.

Recent polling from the Dallas Morning News and the University of Texas signaled another reason for Democratic angst: Biden’s approval rating is underwater among Latino voters in the Lone Star State. More than 54% of the state’s registered Latino voters said they disapprove of the job Biden is doing overall, while only 35% said they approve.

When it comes to the president’s handling of the immigration crisis at the border, only 29% of the state’s Latino voters indicated their support while 52% said they disapprove (with the rest undecided). The survey was conducted Sept. 7-14, before more than 12,000 Haitian immigrants amassed under the Del Rio International Bridge, creating a new humanitarian crisis with immigration facilities already stretched beyond capacity.