But Hawley’s legislation with the panel’s top Democrat, Sen. Gary Peters of Michigan, sailed out of the Senate Committee on Homeland Security and Governmental Affairs, after his support delivered a bipartisan vote over the objections of the other Republicans, who have majority control.

Republican Sen. Josh Hawley engaged in a fiery debate with members of his own party before joining Democrats on the Senate Homeland Security & Governmental Affairs Committee Wednesday to advance a bill that would ban members of Congress or their spouses from trading or holding individual stocks.