Front-runners Buttigieg and Sanders beat back debate attacks

From left, Democratic presidential candidates former Vice President Joe Biden, Sen. Bernie Sanders, I-Vt., Sen. Amy Klobuchar, D-Minn., and businessman Tom Steyer participate in a Democratic presidential primary debate Friday in Manchester, N.H. (AP Photo/Elise Amendola)

MANCHESTER, N.H. — Democratic presidential front-runners Bernie Sanders and Pete Buttigieg beat back a barrage of attacks during a Friday night debate as rivals raised persistent questions about their ideology and experience, hoping to sow doubts about their ability to defeat President Donald Trump.