John Thune
John Thune is an American Republican politician and U.S. Senator from South Dakota. He chaired the Senate Republican Conference from 2019 and was elected Senate Majority Leader after Republicans regained the majority in the 2024 midterm elections. Before joining the Senate, he represented South Dakota in the U.S. House of Representatives.
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Trump signs 'Graham Act' authorizing up to 100% tariffs on buyers of Russian oil and gas
US President Donald Trump on September 18, 2026 signed the 'Lindsey O. Graham Sanctioning Russia and Iran Act' (HR 5334), a law authorizing tariffs of up to 100% on imports from countries that remain major buyers of Russian energy resources. China, India, and Turkey are the most likely targets; Hungary and Slovakia are also named. The bill also expands sanctions on Russia's military, financial, and energy sectors, on shadow-fleet vessels, and on exports usable for weapons production, and continues existing US sanctions on Iran.