President Joe Biden is arguing that “there is something dangerous happening in America” as he revives his warnings that Donald Trump and his allies represent an existential threat to the country’s democratic institutions.

“There is an extremist movement that does not share the basic beliefs of our democracy. The MAGA movement,” Biden says in excerpts of the speech Thursday in Arizona, released in advance by the White House, referring Trump’s Make America Great Again slogan.

Although voting in the 2024 Republican primary doesn’t begin for months, Biden’s focus reflects Trump’s status as the undisputed frontrunner for his party’s nomination despite facing four indictments, two of them related to his attempts to overturn Biden’s victory in the 2020 election.