I think they would, And I imagine it being pretty lucrative (especially with everything happening right now) but there will be a lot of competition such as news sites and such to deal with. Not impossible but it will take time and more money than usual
I guess it would be average too since it's not really a product market, and there would be the issue of complying with adsense's ts regarding BLASPHEMY and other violence stuffs. Needs to be highly moderated as things get tensed easily in this topic.
I dont think political niche get high CPC or bcoz more or less ads are not related to specific niche. Mostly you can see ads for deals, resturants, watches.. etc..