WASHINGTON—Bernie Sanders is investing in California. Elizabeth Warren is rivaling Michael Bloomberg’s staffing presence in delegate-rich states. Joe Biden plans to press a nationwide advantage with a diverse swath of the Democratic electorate. Several of the leading Democratic candidates are girding for a long fight for the presidential nomination by making a series of bets on states that will be part of a slate of Super Tuesday contests and other primaries scheduled for March, when nearly two-thirds of the delegates to the...

Source: Wall Street Journal January 25, 2020 14:03 UTC