It now appears very likely that both the state of Vermont and the federal government are going to launch performance audits into the rocky roll-out of the state’s new health care exchange. State Auditor Doug Hoffer says it’s possible that his office and the feds will work together on the project.Dartmouth College announced yesterday that it’s received a $100 million donation—the largest in the college’s history. Voters in Wallingford are headed back to the polls to weigh in on a $900,000 bond for renovations to the elementary school. The Vermont Senate has given preliminary approval to a bill that would grant immunity from professional conduct charges for doctors and other health professionals if they pursued a hotly debated course of treatment for Lyme disease.