Make that two former Mexican presidents who have compared Donald Trump to Adolf Hitler.

Less than 24 hours after former Mexican president Vicente Fox likened the Republican presidential front-runner to history’s most infamous dictator, another former president, Felipe Calderon, did the same.

This logic of praising the white supremacy is not just anti-immigration," Calderon told   reporters in Mexico City on Saturday. “He is acting and speaking out against immigrants that have a different skin color than he does, it is frankly racist and [he is] exploiting feelings like Hitler did in his time.”

Earlier that day, Vicente Fox, Calderon’s predecessor in office, told CNN anchor Anderson Cooper that Trump “reminds me of Hitler.”

Though commentators have examined the question of whether Trump’s speeches are fascist since last year, the comparisons have cropped up in numerous corners of the media this week. The linguist and academic Noam Chomsky said in an interview with Alternet that the present conditions of American society mirror those that led to Hitler’s rise to power in Germany in the 1930s. A widely circulated feature on Trump written by Matt Taibbi of “Rolling Stone” compared Trump’s onstage manner to Benito Mussolini, the fascist dictator who served as Hitler’s chief ally during World War II.

While it's unclear what Trump himself thinks of the comparisons, there are some Trump supporters who might think of them as compliments. On Wednesday, the former leader of the Ku Klux Klan, David Duke, said in an interview that he supports Trump's candidacy, and Trump's behavior and proposals, including a plan to build a wall that would run the length of the U.S.-Mexico border, are routinely praised by white supremacist groups on social media. Trump has not shied away from their approval; more than half of the tweets retweeted from his Twitter account come from white supremacist groups praising him.

It's not clear that these descriptions will harm Trump's political prospects. The businessman and reality TV show host has more than four times as many delegates as any of his remaining Republican opponents, and he has leads in eight of the 12 states that will hold primaries during next week's Super Tuesday.