(CNN) - Vice President Joe Biden has a message for Democrats this November: "stop whining."
At a fundraiser Monday in New Hampshire for three Congressional candidates, Biden said he thinks Democrats will retain control of both houses of Congress in November, but only if they are able to highlight their differences with Republicans.
Democrats should "remind our base constituency to stop whining and get out there and look at the alternatives," Biden said, echoing the Democratic message this fall.
Voters have a right to be angry, he said, but the choice between parties is clear.
Part of that choice, he said, means voting against Republicans and the agenda of former President George W. Bush.
"Worst of all was the policies they had in place that decimated the middle class. That's the real catastrophe," Biden said.
Adam Green, the co-founder of the Progressive Change Committee hit back at Biden's comments Monday.
"[We are] picking up the ball that this White House dropped when they refused to fight for the overwhelming popular public option, refused to break up the big banks, and demobilized Obama voters who expected this President to at least fight for big change," Green said in a statement.