Duplicate Market?

Hi,

With it becoming more and more likely that Obama is going to be the nominee I'm finding some markets which will cause us some trouble in the Politics category once Obama is the official nominee.

For example here's one market titled "If Obama is nominated, who will win the Presidency?"
http://www.hubdub.com/e/Market/If_Oba...

So the problem we have here is that the market will be pretty much an exact duplicate of the "Who will be the next President?" market. We do have other markets that are duplicates or very close to being and I'm trying to do some overdue spring cleaning.

But, how do we deal with this market? Right now I see two possibilties:

1. Suspend market once Clinton drop's out. This may set a bad precedent though.
2. Void the market saying it's a duplicate and that I failed to recognize the implications of this type of market beforehand.

So any thoughts?

Regards,

Ryan
Hubdub Category Editor