Senate Democrats queasy over Sanders as nominee

Senate Democrats are feeling queasy about their party’s presidential primary after Sen. Bernie Sanders (I-Vt.) seized front-runner status by winning the New Hampshire primary, while former Vice President Joe Biden stumbled to a fifth-place finish.

Democratic senators have been careful not to criticize Sanders publicly, fearing that it could undermine party unity heading into the November general election, which they view as a must-win contest.

But they have serious questions about the electability of their self-described democratic socialist colleague and the problems he may create down-ballot for vulnerable Senate candidates....