Vice President Mike Pence has an appointment at Minnesota’s Mayo Clinic on Tuesday to learn about a new coronavirus testing “moonshot.” The famed clinic is partnering with the state and the University of Minnesota to boost the state’s capacity to 20,000 tests a day. It’s an approach that leverages world-class health institutions that not all states can match. Experts say a big increase is needed to safely reopen the economy. Minnesota is one of several states that have quit waiting for the federal government for help.