Biden also took a step toward reversing Trumps hard-line immigration policies by naming Cuban-born lawyer Alejandro Mayorkas to head the Department of Homeland Security.
（Compiled by Linda Noakes; Editing by Mike Collett-WhiteOur Standards: The Thomson Reuters Trust Principles.additional reporting by Allison Martell; Editing by Alexander Smith
還(huai)has been on course for a fourth term.
國and Trump would have to flip the outcome in Pennsylvania.
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a lawyer who made baseless allegations of a vast vote-rigging conspiracy at a campaign news conference on Thursday.