Senator Ben Cardin says China is a major threat to the United States. Speaking on Fox News’ Sunday, the Maryland Democrat said China’s encouraging the Ukrainian war by working with Russia. Cardin said China needs to understand what the consequences would be if they start to give Russia lethal aid. He said China can no longer sit on the sidelines and called for them to pick a side, while asking China to join the U.S. in fighting back against Russia’s aggression.