Former senator Norm Coleman has a beef with Democratic leaders in the senate...He says majority leader Harry Reid backed out of an agreement to let his staff wrap up so-called 'constituent cases.'Coleman said today that Reid had initially agreed to let his staffers take 60 days to wrap up 400 open cases; a spokesman for Reid denies there was ever such a deal.Constituent cases are pleas for help from individual citizens.Coleman says failure to deal with the cases will leave hundreds of Minnesotans in limbo.