 If he wins reelection, Donald Trump will have an isolationist ally and vice presidential pick J.D. Vance, a staunch critic of U.S. military aid to Ukraine. I got to be honest with you, I don't really care what happens to Ukraine one way or another. Vance's new proximity to Trump alarms hawkish Republicans and European allies who fear Russia's ambitions if it conquers Ukraine. Vance, like Trump, favors higher tariffs on China to protect U.S. industries by raising the cost of imports.