WASHINGTON (AP) — Sen. Lindsey Graham’s pursuit of a Russia sanctions bill has taken on renewed urgency after his death as colleagues look to pay tribute and build on the progress he made in gaining the White House’s support for the measure.Supporters of Ukraine have been working for more than a year to pass a bill that would impose steep tariffs on goods from countries that continue to buy Russian oil, gas and other exports. They unveiled a revised measure Tuesday with the goal of depriving Russia of money it uses to fund its war against Ukraine.Some lawmakers worried the original bill was too broad and could harm the economies of some of the U.S.'s strongest allies that have also helped Ukraine. The White House wanted to ensure the president had adequate flexibility to waive sanctions when it is the national interest to do so. The revised bill attempts to address both concerns.The final bill more narrowly applies the tariffs to the world’s top five purchasers of Russia oil or natural gas, according to a summary. China and India are at the top of that list, sponsors said. It also dramatically reduces the tariffs from a blanket 500% to up to 100%, and it provides exceptions for countries that import less than 15% of their natural gas from Russia and are taking steps to reduce those imports.