Legal experts and members of Congress have started to urge President Joe Biden to seize control of the Texas National Guard, which Governor Greg Abbott is using to defy federal law and a U.S. Supreme Court ruling while continuing to obstruct federal agents from accessing the border. “Texas’s constitutional authority,” Governor Abbott claimed Wednesday, “is the supreme law of the land and supersedes any federal statutes.” For months, the Texas Republican governor has been ramping up his attacks on the Biden administration’s handling of what right wing pundits and politicians call the “border cr…