The Memo: Democratic rivals have seven days to stop Sanders | TheHill

Such a result would likely mark the de facto end of former Vice President Joe BidenJoe BidenSanders defends Castro comments in wake of backlash from some Democrats Klobuchar releases medical report that says she's in 'very good health' Candidates face pressure to exit presidential race MORE’s campaign — and give Sanders unstoppable momentum going into Super Tuesday.“If he wins South Carolina, the train has left the station,” said one Democratic strategist who asked for anonymity to discuss the state of the race.The Vermont senator’s strength in California is especially important. Democrats who have hoped that the party would opt for a more centrist nominee than Sanders have been frustrated to see several candidates split moderate support, including Biden, Bloomberg, Sen. Amy KlobucharAmy Jean KlobucharKlobuchar releases medical report that says she's in 'very good health' Candidates face pressure to exit presidential race Buttigieg proposes undoing SALT deduction cap MORE (D-Minn.) and former South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegSanders says idea he can't work with Republicans is 'total nonsense' Sanders defends Castro comments in wake of backlash from some Democrats Candidates face pressure to exit presidential race MORE (D).Meanwhile, progressives have largely coalesced around Sanders as Sen. Elizabeth WarrenElizabeth Ann WarrenCandidates face pressure to exit presidential race Buttigieg proposes undoing SALT deduction cap Bloomberg called Warren 'scary,' knocked Obama's first term in leaked audio MORE (D-Mass.) has underperformed expectations.The prospect of one or more of the remaining major candidates dropping out before Super Tuesday is undercut by a basic fact.