Sanders, Buttigieg spar over socialism, past comments on Cuba
01:55Sen. Bernie Sanders defended earlier comments he'd made about Cuba and Pete Buttigieg criticized him as having "nostalgia" for politics of the 1960's during the Democratic debate.
Sen. Bernie Sanders defended earlier comments he'd made about Cuba and Pete Buttigieg criticized him as having "nostalgia" for politics of the 1960's during the Democratic debate.
