While doubling down on his attack against Mexican immigrants, Donald Trump hurled harsh words at Jeb Bush, calling the top 2016 Republican candidate's stance on immigration "weak."

During an interview on Fox News Channel's "On the Record," the billionaire real estate mogul took a few jabs at the Republican Party and Bush on the issue of immigration reform.

"I will say that I love the Republican Party, [but] I think they're making tremendous mistakes," Trump said, according to The Hill. "I think they're far too weak on immigration. I think they're weak on a lot of things."

"I watched Jeb Bush," he continued. "I think it's pathetic what's going on, his stance on Common Core. He's in favor of Washington educating your children. His weak stance on immigration -- he said it's an act of love. I mean what kind of stuff is that? It's baby stuff."

According to Bush campaign spokeswoman Emily Benavides, Bush is in favor of providing undocumented immigrants with legal status without a pathway to citizenship.

"As he outlined in his book on this issue, Gov. Bush believes in a conservative legislative solution to fix our broken immigration system that includes earned legal status for those currently in the country after they pay fines and taxes, learn English and commit no substantial crimes while securing our border," she said, reports CNN.

Trump's criticism of the former Florida governor comes days after Bush stated that he was personally offended when Trump called Mexican immigrants drug traffickers and rapists last month. Bush also said that the reality television star's anti-immigration remarks does not align with the Republican Party.

"I don't think he represents the Republican Party, and his views are way out of the mainstream of what Republicans think," Bush told reporters in New Hampshire.

"Everybody has a belief that we should control our borders," the GOP frontrunner said. "But to make these extraordinarily ugly kind of comments is not reflective of the Republican Party. Trump is wrong on this."

Bush also admitted that he took personal offense to Trump's remarks about Mexican immigrants being that his wife was born in Mexico.

"Yeah, of course. Absolutely," he said when asked if he took the rhetoric personal. "And a lot of other people do as well."