Miami, Dec 10 (EFE).– Cuban-American billionaire Mike Fernandez, the biggest campaign donor to Republican presidential hopeful Jeb Bush, has launched a campaign against magnate Donald Trump, whom he says is a “narcissist” who must be stopped.

“The problem with Donald Trump is that so much about him is unstable – his positions, his rhetoric – and I am afraid this country and our world cannot bounce back if someone like him becomes president. The potential damage to our nation and our future could be catastrophic,” Fernandez said in a press release.

Fernandez, who came to the United States with his family at age 12 and made his fortune in the health care sector, some days ago bought a full-page ad in the daily Miami Herald in which he criticized Trump’s recent comments about Hispanics and others.

Trump currently is the frontrunning presidential hopeful in the surveys of Republican voters.

The ad circulated a few days after a new poll found that Trump holds a 20-point lead over his closest rivals for the GOP presidential nomination.

“Donald Trump is puffed out about himself, like a crowing rooster, but acts more like a crying capon because his rhetorical attacks lack courage, truth and hope,” Fernandez said in his statement accompanying the release of a new video advertisement for his “Stop the Bullyionaire” campaign.

“His peak was built on sound-bite insults against whole populations – people who want nothing more, but nothing less, than a fair shake at living the American dream,” the statement continued.

The Republican donor compared Trump’s remarks and behavior to the rise of dictators like Hitler, Mussolini and Fidel Castro, who garnered support among groups of people who had lost faith in their political leaders.

Fernandez, who has contributed more than $3 million to the former Florida governor’s campaign, also criticized the Republican Party leadership for not categorically denouncing Trump.

The Cuban-American billionaire calls himself a “concerned conservative” and hopes to be able to support a GOP candidate in the 2016 elections, but he said that one’s country comes before anything else and that means drawing a line against Trump.

As part of his “Stop the Bullyionaire” campaign, the Miami resident on Wednesday released a video online emphasizing the contributions of the U.S. Latino community, which Trump has attacked during his presidential campaign, especially the roughly 11 million undocumented foreigners living here.

Despite the fact that he has more efforts scheduled, including buying TV ads during the upcoming Republican debate on Dec. 16, Fernandez said he had decided to wait to see how Trump responds to the recent wave of criticism against him, according to what the health care magnate’s political advisor, Christina Bonarrigo, told EFE.

This week, Trump issued a call to temporarily ban the entry of Muslims into the country in response to what he said was the jihadist terrorist threat in the United States.

Trump unveiled his plan after the Dec. 2 attack in San Bernardino, California, in which 14 people were killed and 21 wounded by a radicalized U.S.-born Muslim man and his Pakistani wife. EFE