Russia on Sunday claimed its troops had captured a strategically important town in eastern Ukraine, as part of a grinding campaign to weaken Kyiv’s grip on the country’s industrial heartland.

Russia’s aggression in Ukraine has been a splitting point between Trump and the more hawkish Republican Senate conference. Last year, Trump blew up a deal to swap additional provisions for border security in exchange for aid to Israel and Ukraine. Aid to Ukraine ultimately passed without additional border security spending.