“Mrs. Clinton’s defeat in Wisconsin does not significantly dent her comfortable lead in the race for the 2,383 delegates needed to secure the Democratic nomination. But the loss underscores her problems connecting with young and white working-class voters who have gravitated to Mr. Sanders’s economic message — a message he will now take to economically depressed parts of New York State ahead of the April 19 primary there.” — from Amy Chozik‘s 4.5. N.Y. Times story, “Bernie Sanders Wins Wisconsin Democratic Primary, Adding to Momentum.”