Mike hello, as Au fait says the political niche is called Soapboxie.com but IMO the new hubs just written have gone to the niche sites. Maybe if you up-date some they will go to Soapboxie.com
Mine (non-political) have gone to LetterPhile.com
You can see when you go to you profile page and look at the words in red above you title it will tell you if a hub is niched it will have (i.e. LetterPhile.com) is above my "Stop Domestic Abuse" title.
I hope this helps.
Blessings my friend