A journalist was dragged out of a press conference between President Donald Trump and Russian President Vladimir Putin in Helsinki on Monday after holding up a sign reading “Nuclear Weapon Ban Treaty.”

Dramatic video shows Sam Husseini — communications director for DC nonprofit the Institute of Public Accuracy who was reporting on the presser for lefty magazine The Nation — being hauled out of the event by several guards before the two leaders arrived at their podiums.

Russian authorities had declared Husseini’s sign a “malicious item,” according to CNBC.

The Institute for Public Accuracy’s mission is to help “progressive and grassroots organizations” get “their ideas into the mainstream media,” according to its website.

A spokeswoman for The Nation confirmed it had obtained press accreditation for Husseini to cover the summit.

“At a time when this administration consistently denigrates the media, we’re troubled by reports that he was forcibly removed from the press conference before the two leaders began to take questions. This is a developing situation that we will be following closely,” spokeswoman Caitlin Graf said in a statement to The Post.