Democratic presidential candidate and former New York City Mayor Mike Bloomberg speaks at a campaign event in Raleigh, N.C., Thursday.

Democratic presidential candidate and former New York City Mayor Mike Bloomberg speaks at a campaign event in Raleigh, N.C., Thursday.

Democratic presidential candidate and former New York City Mayor Mike Bloomberg speaks at a campaign event in Raleigh, N.C., Thursday.

Democratic presidential candidate and former New York City Mayor Mike Bloomberg speaks at a campaign event in Raleigh, N.C., Thursday.