Senators are escalating calls for a severe Russia sanctions bill to advance, with Republican Sen. Lindsey Graham claiming -- after talks with Ukrainian President Volodymyr Zelenskyy -- that the chamber will move ahead with legislation this week that would impose strict tariffs on Moscow.

Sen. Lindsey Graham (R-S.C.) is proposing a carveout for his Russia sanctions bill to exempt countries that help Ukraine’s defense, protecting them from a 500 percent tariff on countries trading with Russia.