Former CIA Director John Brennan has joined growing calls to remove U.S. President Donald Trump from office, citing concerns over his mental stability and fitness to lead. In an interview with MSNBC on Saturday, Brennan argued that the 25th Amendment to the U.S. Constitution was written with situations like Trump’s in mind. He described Trump as mentally unbalanced and said his recent provocative remarks about destroying Iranian civilization have endangered many lives.

Brennan, who served as CIA chief under President Barack Obama, stated that Trump poses a significant risk as commander-in-chief because he controls the nation’s nuclear arsenal and vast military power. His comments add to a rising chorus of voices questioning Trump’s capacity to govern amid escalating tensions with Iran.

The remarks come as the United States has reportedly blocked all Iranian Gulf ports, while Qatar and Iran are engaged in talks over ceasefire and regional stability.