Biden administration warns it will take action if Texas does not stop blocking federal agents from U.S. border area. ... If the Texas National Guard does not heed the Biden administration's demand and cease its efforts to block Border Patrol's access to a public park in the border town of Eagle Pass, the Department of Homeland Security will refer the matter to the Justice Department and explore other options, Jonathan Meyer, the top lawyer at DHS, warned in his letter to Texas Attorney General Ken Paxton.