so, just a quick search
Yes, President Joe Biden frequently referred to the "MAGA" (Make America Great Again) movement and its backers in a highly negative way during his administration. He consistently characterized this faction of the Republican Party as an extreme threat to American democracy
Threats to Democracy: In a September 2022 prime-time address at Independence Hall, Biden argued that "Donald Trump and the MAGA Republicans represent an extremism that threatens the very foundations of our republic," accusing them of promoting authoritarianism and embracing political violence
Semi-Fascism": During an August 2022 campaign rally, Biden described the core philosophy driving "extreme MAGA Republicans" as bordering on "semi-fascism
Historical Extremism: In May 2022, while speaking on the economy, he referred to the MAGA faction as the "most extreme political organization that's existed in... recent American history," pointing to their platforms on education, tax policies, and the social safety net