Seven years after running for president as the GOP standard bearer, U.S. Sen. Mitt Romney on Monday described himself as a “renegade Republican” and said that he is “not part of the Republican establishment these days.” In a wide-ranging speech at the Sutherland Institute, a conservative think tank in Salt Lake City, Utah’s junior senator argued against “socialist” proposals being discussed on the Democratic presidential debate stage such as “Medicare for All” and free college tuition. He also lamented that “neither party is interested in talking about the debt and the deficit.” “I guess I should consider myself a renegade...