Earlier on Monday, Bloomberg told campaign events in California he would not let Trump bully him.
Judge Judy Sheindlin, who is more well-known as television personality Judge Judy, introduced Bloomberg at the event. His campaign also said it plans to open 11 additional field offices throughout the state this weekend, pressing forward on plans to expand the campaign's footprint into the largest operation of any Democratic presidential candidate in Texas.
Other attendees, like Todd Westby, were more upbeat about Bloomberg.
While both Raimondo and Bloomberg have pledged to support any victor of the Democratic primary, Raimondo said she hopes voters understand that it won't be easy to defeat trump.
On the content marketplace site which Bloomberg is making the push, the campaign asks so-called micro-influencers, "Are you sick of the chaos & infighting overshadowing the issues that matter most to us?"
Bloomberg characterized the president as a "schoolyard bully" who criticizes Democrats instead of passing substantive policy.
Although Raimondo's approval ratings in Rhode Island have been less than sterling, she's well known in national Democratic circles as an ace fundraiser, former chair of the Democratic Governors Association and someone who made her name with a widely heralded pension overhaul as state treasurer.
Raimondo, however, said she sees Bloomberg as uniquely qualified for the presidency, especially among the current Democratic field.
Meanwhile, a few former Raimondo staffers, including David Allard, are working on Bloomberg's campaign. That number is below Democratic rivals Joe Biden, Sanders and Warren, but above the likes of Pete Buttigieg, Andrew Yang and Amy Klobuchar.
Bloomberg will be the keynote luncheon speaker today at the 60th annual convention of the Alabama Democratic Conference, the primary black caucus of the state Democratic Party.
Before the Iowa caucus count debacle, Bloomberg downplayed the importance of the results.
Alluding to Mr. Bloomberg's past record of supporting invasive policing tactics, Mr. McEachin said, "He still has to answer for stop-and-frisk".
Technical problems have so far prevented Iowa from declaring a victor, and multiple campaigns have released data that they say indicates that former vice president Joe Biden, the polling leader, is unlikely to win first place.