A group of House Democrats has asked President Joe Biden to take executive action on “concealable assault-style firearms,” citing two mass shootings in Atlanta and Boulder, Colorado, last month. “Concealable assault-style firearms that fire rifle rounds pose an unreasonable threat to our communities and should be fully regulated under the National Firearms Act consistent with the intent and history of the law. The recent tragedy in Boulder, Colorado where 10 people including a police officer were killed is one in a string of deadly incidents involving this style of weapon,” Reps. Mike Thompson (D-Calif.), Joe Neguse (D-Colo.), Val Demings (D-Fla.),...