U.S. officials step up rhetoric on Russia link to email hacks

(Reuters) - Republican vice presidential candidate Mike Pence said on Sunday that evidence implicated Russia in recent email hacks tied to the Nov. 8 U.S. election, contradicting his running mate, Donald Trump, who has cast doubt on Russia's involvement. Pence's comments came after U.S. Vice President Joe Biden said in an interview that aired on Sunday that the United States would be sending a message to Russia "at the time of our choosing" about the email attacks.