WASHINGTON, Aug 19 (Reuters) - U.S. House of Representatives Republicans issued a report on Monday alleging Democratic President Joe Biden committed impeachable offenses, but it was unclear whether they would push for a vote following a probe the White House has long dismissed as politically motivated. A 291-page report by three House committees alleged that Biden profited from an influence-peddling scheme to enrich himself and members of his family through foreign business dealings beginning...