Previously, Carlson said he had planned to sit-down with the Russia president while at Fox News but then called it off claiming the U.S. government was monitoring him.
“I tried to interview Vladimir Putin, and the U.S. government stopped me,” Carlson told the Swiss publication, Die Weltwoche back in September. “By the way, nobody defended me. I don’t think there was anybody in the news media who said, ‘Wait a second. I may not like this guy, but he has a right to interview anyone he wants, and we have a right to hear what Putin says.'”
I doubt an interview will help. Any journalist doing that would be throwing their life away for nothing.
Putin gives interviews all the time, and he simply and plainly lies about reality. That is an essential part of Putin’s power - he is showing Russian people, constantly, that he can lie to their face without consequences. If a journalist confronted him with facts, he would simply deny them. If a journalist challenged him, he is very well-trained to not react in a way that exposes discomfort or legitimizes the response.