Bolton, who worked for Trump during his first term, said this is more proof that his old boss isn't fit for the Oval Office.

Former national security advisor John Bolton was among conservative figures who criticized the behavior of the U.S. president ...

John Bolton, a former National Security Advisor in President Donald Trump's first term, said his ex-boss is cognitively ...

John Bolton, a former American government official who served as Trump's national security advisor between 2018 and 2019, ...

Former national security adviser John Bolton said President Trump’s mind is “full of mush” as he navigates international ...

During a conversation in front of cameras, relations broke down as Trump and Zelensky started arguing in front of reporters, ...

NPR's Scott Simon talks to former National Security Adviser John Bolton about the foreign policy implications of Friday's shocking press conference between President Trump and President Zelenskyy.

John Bolton told comedian Jordan Klepper that President Donald Trump can be a "useful idiot" for Russian President Vladimir ...

John Bolton, former U.S. National Security Advisor, Alexander Vindman, former Director of European Affairs for the National ...

The epic blowup inside the Oval Office Friday that pitted Donald Trump and J.D. Vance against Ukrainian President Volodymyr ...

Republicans have responded to President Donald Trump's “disastrous” meeting with Ukrainian President Volodymyr Zelensky, ...

Follow updates as President Donald Trump receives Ukraine's Volodymyr Zelenskyy at the White House and the foreign aid freeze ...