Biden wins Minnesota, surges in South; Sanders wins Colorado

WILL WEISSERT and STEVE PEOPLES Associated Press WASHINGTON (AP) — Joe Biden scored key Super Tuesday victories in Minnesota and across the South, building on momentum that has swiftly revived his Democratic presidential campaign in recent days. Bernie Sanders countered with wins in his home state of Vermont and in Colorado, as the race began to shift west, where some polls were starting to close. Biden took Alabama, Arkansas, Tennessee, Oklahoma and the battleground states of North Carolina and Virginia, a strong showing as 14 states went to the polls across the nation. Still, results were unclear in the two top prizes, Texas and California — meaning the night's biggest winner remained to be determined. Minnesota helped Biden show strength in the upper Midwest, and Oklahoma added