It’s hard to keep up with Senator Marco Rubio’s thoughts on Donald Trump’s meeting with Vladimir Putin and the aftermath, but today he is speaking out, trying to clarify his own position. He told CNN’s Jake Tapper that, “no one has been tougher on Putin and interference than I have been.” He also expressed concern with how Trump handled Russia this past week saying, “I don’t think it was one of the best moments in the administration.”

He makes clear what Trump hasn’t, that Putin is a madman. Here’s part of the interview:

Tapper: “You have suggested in the past you think Putin might be responsible for war crimes, not just in Syria.”

Rubio: “He has been. I know he has.”

Tapper: “You have a problem with him coming to the White House? I mean meeting with the President is one thing but coming to the white house is another. “

Rubio: “The symbolism of it, people could make the argument you just pointed out, there’s no doubt in my mind Putin has authorized war crimes. He also possesses between us 90% of the world’s nuclear weapons as the President pointed out this week. Kind of one of those tough situations, if he was a dictator of a third world country we would treat him one way, we have to engage with a guy like this. But knowing exactly who he is, this is the guy that shot down that Malaysian airliner and invaded Ukraine and took Crimea. This is the guy that murders his political opponents. This is who we’re dealing with, and bombs aide convoys, and helps the Syrian regime gas people by covering for them. this is who we’re dealing with. As long as we know that.”

Rubio also addressed Russia’s offer to partner up on an investigation.

And Rubio disagreed with a Trump tweet put out this morning.

Watch the full interview with Rubio above.