Donald Trump Jr. and George P. Bush had formed an unlikely alliance despite their fathers, Donald Trump and Jeb Bush, loathing each other — with Don Jr. backing George P. in his re-election campaign for Texas land commissioner, and even planning to headline a New York fundraiser for him on June 25.

What we’re hearing: Two sources close to Don Jr. tell Axios that he has decided to pull out of the fundraiser due to the Bush family’s opposition to his father. Most recently, Jeb Bush tweeted that “children shouldn’t be used as a negotiating tool” and that President Trump should end his “heartless policy” of family separation.