MIAMI — Jeb Bush went on the offensive Tuesday against GOP presidential front-runner and frequent antagonist Donald Trump, releasing an attack video portraying the mogul as a closet liberal and signaling that he will attempt to bring Trump down in coming weeks.

“He attacks me every day. He attacks me every day with barbarities,” Bush said in Spanish in response to questions from reporters at a Presbyterian school here. “They’re not true. What we did today was to put out in his words to show that he’s not conservative.”

But in fully embracing a fight against Trump, Bush is embarking on a risky strategy that could further fuel Trump’s unexpected rise and complicate his own path to the nomination. Allies of the former Florida governor insist that he had no choice but to adopt a more aggressive posture, elevating his feud with Trump to the marquee contest in the GOP primary contest.

Republicans said the dilemma for Bush is obvious. If he hangs back, voters may conclude he is weak. If he attacks, he engages a candidate who has proved to be an effective counterpuncher. For now, the conclusion in the Bush campaign is that appearing weak is the greater risk.

“Knowing Jeb, I’m sure he’d prefer to be talking about policy proposals rather than trading verbal jabs with Trump,” said Ana Navarro, a longtime GOP strategist backing Bush. “But what . . . is he going do? Let the guy mischaracterize his record and positions and attack him daily? Enough is enough. If Trump wants to pick a fight with Jeb, Jeb needs to embrace it and hit back.”

Read the article “It’s on: Jeb Bush Embraces a Risky Fight with Donald Trump” on washingtonpost.com.