I did say "perhaps" Montana, based largely on the facts that they elected a Democratic senator last year, and that it was one of the western states Clinton carried in '92. Obviously it would be the longest shot of all the states where the Dems have any chance at all, and everything would have to fall into place for them to carry it.
Clinton only carried it because of Perot. As for a Democratic senator, in addition to what Mr. Moderate said, go look at the margin of victory, and then take into account the idiot senile old fool who was the GOP incumbent. If you can only beat a guy like that by a point, how does any Democrat win it against anyone else?