U.S. Senator Franken, on groping allegations, vows 'this will not happen again'

WASHINGTON (Reuters) - U.S. Democratic Senator Al Franken returned to Congress on Monday to begin what he called a process of rebuilding trust shattered by allegations he had groped or inappropriately touched women, vowing "this will not happen again."

"I know that I am going to have to be much more conscious when in these circumstances, much more careful, much more sensitive and that this will not happen again going forward," he told reporters outside his office on Capitol Hill.

(Reporting by Richard Cowan; Writing by Tim Ahmann; Editing by Dan Grebler)