The European Commission is discussing a proposal to bring forward a ban on Russian liquefied natural gas in a new package of sanctions against Moscow over its invasion of Ukraine, an EU official said. The new push follows a call between European Commission chief Ursula von der Leyen and U.S. President Donald Trump on Tuesday. The U.S. has stepped up pressure on Europe to play a more robust role in helping to end Russia’s war in Ukraine, with a peace deal seemingly elusive despite repeated threats of harsher penalties on Moscow and partners. Trump’s demands include that European nations halt all Russian oil purchases and that the bloc impose tariffs on China and India, both big buyers of Russian fossil fuels. He has also piled pressure on