Jacksonville, Fla. — Republican presidential candidate Donald Trump said former Florida Gov. Jeb Bush shouldn't be running the country if he can't even run his own campaign.

Trump was in Jacksonville on Saturday, the day after the Bush campaign announced staff trims and 40 percent pay cuts for those who remain. He said Bush, the son and brother of former presidents, is embarrassing his family.

Trump said he's only spent a couple of million dollars on his campaign and is leading in the polls. He said spending less and getting more is what the country should be doing.

Thousands of raucous supporters cheered Trump in Bush's home state during a riverfront rally. Trump also made fun of Florida Sen. Marco Rubio, saying he's out of money and "sweating like a dog."