Democratic presidential candidate Bernie Sanders toggled between the serious and the not-so-serious on a California campaign swing Wednesday, dancing a few steps to a "Saturday Night Fever" song on a TV talk show, then denouncing Republicans a while later for "racist attacks against the Mexican people."
A day after he and Hillary Rodham Clinton dominated the first Democratic presidential debate in Las Vegas, the crusty Vermont senator took his turn at the image-softening custom of the television talk show, chatting with comedian Ellen DeGeneres a few weeks after Clinton did the same.
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