Attorney General Ken Paxton’s former top cop testified Friday that Paxton repeatedly pressured him to investigate Nate Paul’s “conspiracy theories,” even after law enforcement experts found them to be “ludicrous” and debunked them through forensics and other means.  David Maxwell, a veteran law enforcement officer who served as the attorney general’s director of law enforcement, said he repeatedly told Paxton that Paul was a criminal — potentially of historic proportions. “I told him Nate Paul was a criminal,” Maxwell said.