A group of Republican and Democratic senators in the United States has introduced a revised Russia sanctions bill that reduces the proposed tariff on countries buying Russian energy, including India and China. The new version lowers the earlier proposed tariff of 500% to a maximum of 100% and limits it to the five biggest buyers of Russian oil and natural gas. The updated bill is being seen as a tribute to late Senator Lindsey Graham, who had strongly pushed for tougher action against Russia.