AUSTIN, Texas (AP) — A federal judge on Thursday blocked a new Texas law that would give police broad powers to arrest migrants suspected of illegally entering the US, dealing a victory to the Biden administration with a broad rejection of Republican Gov. Greg Abbott’s immigration enforcement efforts. US District Judge David Ezra’s preliminary injunction pausing a law that was set to take effect March 5 came as President Joe Biden and his likely Republican challenger in November, Donald Trump, were visiting Texas’ southern border to discuss immigration. The state attorney general’s office immediately appealed the ruling, according to a…