5 races to watch in Connecticut, Minnesota, Wisconsin and Vermont primaries

Voting concludes Tuesday for primaries in Minnesota, Wisconsin, Vermont and Connecticut ahead of the Democratic National Convention, which begins next week. Several Senate races are crystallizing in Wisconsin and Minnesota as Sens. Tammy Baldwin (D-Wis.) and Amy Klobuchar (D-Minn.) vie for another term in the upper chamber. Meanwhile, Rep. Ilhan Omar (D-Minn.), one of the last progressives facing a primary challenge this cycle, is gearing up for a rematch against a challenger who almost unseated her in 2022.