The week after Michigan voters narrowly chose the more progressive candidate in a Senate primary, voters in Minnesota will face a similar choice in their state’s Senate primary. And in Connecticut, the Democratic divide is less over ideology than the question of whether the party needs generational change. Here are some of the key primaries to watch Tuesday:Will Wisconsin Democrats pick a democratic socialist for governor? Tens of thousands of Wisconsin voters cast early ballots before the field was set, officials said, creating a scenario for which there is no recourse. That Democratic primary pits Rep. Angie Craig against Lt. Gov.