Joe Biden's aides say the Democratic presidential candidate is thrilled to have former rival Mike Bloomberg's support.

Bloomberg ended his own bid Wednesday after a poor showing and endorsed Biden. The former New York mayor has committed to leaving up his massive campaign operation to help Democrats defeat President Donald Trump in 2020. It's not immediately clear if Bloomberg would use his resources and organization to help Biden in his nominating fight against Bernie Sanders.

Biden's deputy campaign manager Kate Bedingfield says Biden is thrilled that Bloomberg is backing him. But she says conversations about what Bloomberg's endorsement means practically are ongoing.

Federal campaign finance laws would bar direct coordination between the Biden campaign and Bloomberg on a range of spending possibilities should the former mayor essentially want to turn his campaign into a Biden-aligned super PAC.