MILWAUKEE (AP) — Sen. Ron Johnson and Russ Feingold had their second and final debate on Tuesday, three weeks before the election. Tuesday’s debate at Marquette University Law School included talks about Donald Trump, veterans’ issues and a range of other policy questions. The rematch between Johnson, the Republican who quit the business world in 2010 to unseat the Democrat Feingold, is seen as one of the chamber’s likeliest seats for a possible flip. On Tuesday, St. Norbert College showed Feingold leading the race 52 percent to Johnson’s 40 percent. A Marquette law school showed the race about even.