Top Senate Democrat urges sanctions, hearings after Trump-Putin summit

WASHINGTON (Reuters) - U.S. Senate Democratic Leader Chuck Schumer called for a bipartisan effort to "ratchet up" sanctions on Moscow following U.S. President Donald Trump's summit with Russian President Vladimir Putin in Helsinki earlier on Monday. Schumer, speaking at a news conference, also urged Republican congressional leaders to call the U.S. national security team that accompanied Trump to Helsinki to immediately testify before Congress. (Reporting by Amanda Becker and Richard Cowan; Writing by Susan Heavey; Editing by James Dalgleish)