"This is Israel's war. This is not the United States' war."

The video was posted to YouTube less than two days after the US and Israel began their most recent attacks on Iran. It's been viewed more than 2 million times. But it wasn't made by an anti-Trump activist or critic of the president.

The monologue came from one of the most influential voices on the right of American politics: former Fox News host, Tucker Carlson.

"Countries become less free during war, a spirit of violence descends and people change fast," said Carlson, a long-time supporter of Donald Trump who reportedly met with the president several times last month in an attempt to dissuade him from ordering military action. "You can feel on people the bloodlust, the hate, and it accelerates."

Carlson's advice was clear: "Get out right away. It's just that simple. Of course, it's also incredibly complicated, but the first step is deciding that we're leaving."