"When I say do our jobs, what I mean is we are going to have to continue to be engaged, we are going to continue to have to write checks, we are going to continue to have to make phone calls and rally people behind her candidacy," Obama said.



He also urged the Democratic donors at a Clinton fundraiser to help counter an "unrelenting negative campaign" against the former secretary of state "that has made a dent in the opinion of people even who are inclined to vote for her."