A parents group is questioning Attorney General Merrick Garland’s decision to open an investigation into purported threats and acts of violence against school boards across the U.S. after the group discovered that the attorney general’s son-in-law is the co-founder of an education company that uses critical race theory in its work. ... “His daughter is married to the cofounder of @PanoramaEd which is under fire for its multimillion contracts with school boards,” she added. “At @DefendingEd, parents sent us tips. We raised the alarm. Now Garland is trying to silence parents.”