President Donald Trump's national security adviser Michael Waltz is expected to leave his post, sources familiar with the decision told ABC News.

President Trump initially defended Mr. Waltz for mistakenly adding a journalist to a group chat about military strikes.

Waltz’s expected departure appears to signal a tightening focus within the White House on loyalty and ideological cohesiveness.

Michael Bolton said he "ain't going down without a fight" as he battles glioblastoma, an aggressive form of brain cancer.

Michael Bolton has a new love of life after a recent scan revealed he is clear of the brain cancer that he was diagnosed with in 2023.

Michael Bolton has not been given a prognosis for glioblastoma, the "aggressive" brain cancer with which he was diagnosed in 2023. In PEOPLE's latest cover story, his family explains why they're choosing to remain hopeful.