Under the Trump administration, the U.S. has focused on bilateral trade relations and withdrawn from the Trans-Pacific Partnership, a multilateral trade agreement promoted by the Obama administration to counter China's influence in the Asia-Pacific region. White House Correspondent Patsy Widakuswara looks at the regional trade challenges for President-elect Joe Biden, who has vowed to return to multilateralism and work with allies to rewrite the rules of international trade. VOA Khmer's Pin Sisovann narrates.