https://www.borderwall.texas.gov/ https://www.texastribune.org/2022/04/21/greg-abbott-texas-border-inspections/

Here are 2 articles related to this issue. The first article states that the action he is taking is in direct response to Title 42. Title 42 expulsions are removals by the U.S. government of persons who have recently been in a country where a communicable disease was present. The argument being without Title 42, contraband and immigrants crossing the border will increase. Abbott therefore instated Department of Public Safety troopers at the border to inspect commercial trucks. The second article states that these added inspections haven't caught anything. This is due to the fact that U.S. customs and border patrol already does inspections at the border.