In past U.S. Senate races in Indiana, the emphasis in the campaign homestretch is mostly concentrated on domestic or foreign policy. We’ve watched the debate in races going back to 2010 center on issues like deficits and debt, Obamacare, our alliance with Israel, military strength, or tax reform.The battle between U.S. Sen. Joe Donnelly and Republican Mike Braun this time has strangely focused on their personal business interests, with most of the dirty work coming from super PACs that operate independently and are cloaked from the actual campaigns. If you’ve . . .