U.S. Sen. Chuck Grassley is calling for a congressional check on the president's ability to impose unilateral tariffs one day after Republican President Donald Trump announced sweeping global trade levies. @SenatorChuckGrassley, Iowa's senior senator, has introduced bipartisan legislation that would require Congress to approve tariffs proposed by the president. Tap the link in our bio for more details. #Iowa #politics #Tariffs #Iowapolitics #chuckgrassley #news