Most in the GOP are silent or backing the Trump administration, but a conspicuous few are speaking out. A small but growing number of Republicans are raising public concerns about the killing Saturday of a 37-year-old Minnesota man by federal agents.Hours after the fatal shooting of Alex Pretti on a Minneapolis street, one House GOP chair called for the top ICE leader and other Trump administration officials to publicly answer lawmakers’ questions. GOP Sens. Bill Cassidy of Louisiana, Lisa Murkowski of Alaska and Thom Tillis of North Carolina called for independent probes into the shooting, with Cassidy arguing the integrity...