The Kremlin was rocked by the assassination of one of its top military commanders in Moscow in December, sparking fears that Vladimir Putin could be next on the hit list but any attempt to do so could

Volodin said merely discussing a plot to assassinate Putin was path to nuclear war and that Carlson's comments should be investigated further. State news agency Tass reported that Russia's parliament will appeal to U.S. Congress and the U.N. to investigate the claims.