Just seeing if anyone else is too!
My H is more libertarian (wants very small government...interesting, considering he works for the federal gov!) but leans conservative. I'm Democrat. The hardest part is that he is much more informed than I am because he reads everything under the sun, so it's hard to win an argument against him. Our relationship is saved by the fact that he's more socially liberal at least.
So how about you guys? Any difficulties this election season?
Re: Married to the opposite political party?
My dads side of the family and my ILs are all Rep which, like you said, makes holidays difficult since their views on things are way more conservative than ours. My moms side on the other hand only votes Dem and as for as I know always has. My papa is probably the most liberal 75yr old man you'd ever meet which is awesome since his generation is usually pretty old school.
But he leans a little more left and I lean a little more right.
We usually go over all the propositions together and talk them out, and sometimes we don't end up voting the same way. But luckily we are able to be pretty civil about it.
Dx MTHFR (C677T & A1298C, Compound Heterozygous)
H and I both identify as Libertarians and have since before we met, we both agree 100% that smaller government is better, but on social issues H is much more conservative and stereotypically Republican than I am... there are certain things he has a hard time seeing past because of his super conservative Christian upbringing. On certain semi-radical ideas like fair tax we're totally on the same page.. but when it comes to legalizing prostitution and abortion, I think they should be legalized, taxed, and regulated and he just cannot get past the "morally wrong" aspects. Every time we talk about abortion rights I end up wanting to stab him in the face, so we just avoid it.
We are both registered democrats, but don't necessarily agree on everything. His family is very "hard-core republican".
Honestly, politics rarely come up in discussion. For example, I honestly have absolutely no idea who he voted for and really don't plan on asking him. We are both so laid back anyhow, that even if we don't agree about something, we just both state our opinion and bascially agree to disagree with no more argument. I would say our personalities make life easier on us both. 
We are the same political party and have the same views. (Same as you, apparently.) ;-)
Honestly I don't know how we'd be married if we were really different politically. We're not that passionate about politics, but passionate enough to vote in every election, volunteer sometimes, and donate sometimes. And we're both really opinionated and principled. I feel so strongly in my views I really think that a partner being a republican would have been a deal-breaker. Libtertarian could maybe work. Acutally DH was a libertarian when we first met and changed to democrat.