governments in Europe have imposed tighter and longer lockdowns and curbs.
（Electors - party loyalists who typically pledge to support the candidate who gets the most votes in their state - will convene on Dec.The world is much changed since Democrats were last in the White House four years ago.
還Yellen earned a doctorate in economics from Yale in 1971 as the only woman in her class and taught at several major universities before serving as a top economic adviser to President Bill Clinton from 1997 to 1999.
國a professor at Loyola Law School in Los Angeles.
個(ge)Reporting by Tsvetelia Tsolova; Editing by Mark Heinrich and Frances KerryOur Standards: The Thomson Reuters Trust Principles.
Trump has also been considering whether to name a U.