The shooting at a congressional GOP baseball practice is just the latest in an escalating pattern of violence and intimidation against Republicans. James T. Hodgkinson opened fire on GOP lawmakers and staffers with a rifle on Wednesday morning as they prepared for the annual summer baseball game between Republicans and Democrats. The shooter wounded several victims, including House Majority Whip Steve Scalise and a staffer for Texas Rep. Roger Williams, before heroically being taken down by Capitol Police. If not for the attendance of Scalise — whose leadership position comes with a security detail — “it would have been a...