Alexei Navalny appears in a video published by his team on January 18, 2021. Navalny Live/YouTube The US has threatened Russia with sanctions and other consequences if Russian opposition leader Alexei Navalny dies in state prison. Last month, Navalny said he was going on a hunger strike in jail until he could see a doctor. Navalny is recovering after being poisoned with a Novichok nerve agent in Russia. See more stories on Insider's business page. Russia will face heavy consequences like sanctions if Alexei Navalny, a top critic of Russian President Vladimir Putin, dies in jail, national security adviser Jake Sullivan said on Sunday."We have communicated to the Russian government that what happens to Mr.