If all candidates are for abortion, is it a sin to not vote at all?

Romney’s platform is that he is okay with abortion in cases of rape and incest. Obama’s platform, as we know, is abortion any time, for any reason. So, if voting for a pro-abortion candidate is a sin, Obama is out, definitely. But, Romney would allow some innocent babies to die, through no fault of their own. Is allowing ANY baby to be killed okay? Can I morally vote for that?

Is it a sin to vote at all under these circumstances? Is it a sin not to vote?

Dear friend,

While we want to prevent all babies from being aborted, we need to save as many as possible. Isn’t it better to save some than to save none?

Fr. Vincent Serpa, O.P.