Sanders Campaign Was Surprised by Quick Massing of Opposition

ST. PAUL, Minn. -- On Sunday night, Faiz Shakir, the campaign manager for Sen. Bernie Sanders, received a call from his onetime boss and longtime mentor, former Sen. Harry Reid of Nevada.Reid was delivering disappointing news: He planned to endorse former Vice President Joe Biden, who was quickly emerging as Sanders' chief rival in the presidential primary.The call would set off a whirlwind 24 hours for the Sanders campaign, which just days earlier had seemed as if it was on a runaway train to t