The Korean won is expected to strengthen against the U.S. dollar after Democrats swept both chambers of Congress in the U.S. midterm elections, as political tensions in Washington and a potential sell-off in U.S. equities could weigh on the dollar, experts said Wednesday. Democratic control of Congress is expected to complicate U.S. President Donald Trump's efforts to advance his economic agenda, including tax cuts and expanded government spending, while giving lawmakers greater power to scrutinize his administration's policies. The prospect of a prolonged standoff between the White House and Congress could unsettle investors and undermine confidence in U.S. financial markets, said Shin Se-don, an economics professor at Sookmyung Women's University. "A fierce confrontation between Congress and the Trump administration will be inevitable. Trump's economic policy initiatives could face setbacks as Democrats step up opposition to the administration's policies, potentially slowing growth across the broader U.S. economy," Shin said. The political fallout could spill over into financial market