President Trump falsely blamed former President Joe Biden on Monday for the weekend flamethrower terror attack on supporters of Israel in Boulder, Colo., which was allegedly carried out by an asylum seeker from Egypt. Trump said lax immigration security allowed accused attacker Mohamed Soliman to remain in the U.S. But Soliman had a legal work permit that expired March 28, meaning he could not have been deported while Biden was in the White House. “He came in through Biden’s ridiculous open border policy, which has hurt our country so badly. He must go out under ‘Trump’ policy,’ ” Trump wrote...