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Is it the End of the Road for Warren, Steyer, Klobuchar?

Feb.24 -- Democratic presidential candidate Bernie Sanders’ commanding win in the Nevada caucus left Senator Elizabeth Warren, billionaire Tom Steyer and Senator Amy Klobuchar fighting to keep their campaigns alive after receiving only single-digit support. Stephanie Baker reports on "Bloomberg Surveillance." Michael Bloomberg, the founder and majority owner of Bloomberg LP, the parent company of Bloomberg News, is also seeking the Democratic presidential nomination.