Last night was a make-or-break moment for Senator Bernie Sanders, who needed a comeback from a loss to former Vice President Joseph R. Biden Jr. in the Super Tuesday primaries. After Mr. Sanders lost the primary in Michigan, a state he won in an upset in 2016, we ask: Is Mr. Biden now the presumptive Democratic nominee for president? And if not, what is Mr. Sanders\u2019s path forward? \u201cThe Latest,\u201d from the team behind \u201cThe Daily,\u201d brings you the most important developments on today\u2019s biggest news stories.