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Story highlights

Trey McCarley, Kris Money and Debbie Aleksander are no longer with the campaign

Bush and his super PAC have amassed the most impressive fundraising haul of any Republican candidate thus far

(CNN) —  

Personality conflicts may have led to three top Jeb Bush fundraisers leaving the campaign, but they are still working with the former Florida governor’s super PAC.

Trey McCarley, Kris Money and Debbie Aleksander are no longer with the campaign, but now working with Bush’s super PAC, Right to Rise.

“It’s a large finance operation with a lot of consultants around the country. Fundraisers tend to be hard-charging and assertive. Personality conflicts happen. Trey, Kris and Debbie are good people and seasoned fundraising professionals,” said Ana Navarro, a Republican strategist and CNN political analyst, told CNN. “They’ve done a good job. That they’re still working for the super PAC tells us it’s not a Jeb issue.”

Navarro, who is supporting Bush in the 2016 election, was Bush’s first director of immigration policy during his time as Florida’s governor.

Bush spokesman Tim Miller would not comment on the specific departures, but told CNN Bush has the deepest and widest fundraising operation of any candidate in the field, noting that longtime consultant Ann Herberger is leading the operation with more than two decades of experience.

Politico first reported the departures.

Bush and his super PAC have amassed the most impressive fundraising haul of any Republican candidate thus far, collecting $114 million over the first half of the year.

Bush is now tapping into family as surrogates to bring in more money. Former President George W. Bush will headline a fundraiser for his brother in New York City next month. And the former president sent out a fundraising email on Jeb Bush’s behalf last week.

And both former Presidents Bush will attend a donor event in Houston this fall.

Donald Trump, a frequent foil of Bush in the GOP presidential race, teased the former Florida governor over the departures.

“Wow, Jeb Bush just lost three of his top fundraisers - they quit!” he tweeted.