Jeb Bush mocked Trump as 'low energy' for using teleprompter
© Greg Nash

Former presidential candidate and ex-Florida Gov. Jeb Bush mocked Donald TrumpDonald John TrumpGOP lawmakers preparing to vote on bill allowing migrant children to be detained longer than 20 days: report Wasserman Schultz: Infants separated from their parents are in Florida immigrant shelters Ex-White House ethics chief: Sarah Sanders tweet violates ethics laws MORE for being "low energy" last month — turning the presumptive GOP presidential nominee's oft-repeated insult back against him. 

“He seems low energy with the teleprompter,” Bush said over breakfast with a handful of leading Republicans, according to The New York Times.

Bush was reusing the same attack line Trump often used against him during the primary contests.

The presumptive GOP presidential nominee framed Bush as a low-energy candidate, a label that stuck with Bush through the primary season.

Bush has said previously he does not plan to support either major party's presumptive nominee, and he chose not to attend the Republican National Convention taking place in Cleveland this week.

In an op-ed published in The Washington Post earlier this month, Bush said Trump doesn't reflect "the principles or inclusive legacy of the Republican Party."

"And I sincerely hope he doesn't represent its future," he wrote.

Trump has slammed Bush for not honoring his pledge to support the Republican presidential nominee.