Sen. Cory Booker in the fourth quarter pulled in $6.6 million.<br />That numbers pales in comparison with what other Democratic candidates made.<br />CNBC says the amount represents a slight increase from what he raised in the third quarter: about $6 million.<br />Sen. Bernie Sanders raised more than $34 million.<br />Pete Buttigieg raised nearly $25 million.<br />Former Vice President Joe Biden raised just under $23 million.
