Huckabee and Adam & Eve
Apparently, Mike Huckabee's taking some heat for believing Adam and Eve are actual distinct individuals. I'm no Huckabee fan (I might not vote for him if he is the Republican nominee), but this isn't something Catholics should take issue with.
Pius XII, in his encyclical Humani Generis, wrote:
37. When, however, there is question of another conjectural opinion, namely polygenism, the children of the Church by no means enjoy such liberty. For the faithful cannot embrace that opinion which maintains either that after Adam there existed on this earth true men who did not take their origin through natural generation from him as from the first parent of all or that Adam represents a certain number of first parents. Now it is in no way apparent how such an opinion can be reconciled with that which the sources of revealed truth and the documents of the Teaching Authority of the Church propose with regard to original sin, which proceeds from a sin actually committed by an individual Adam and which through generation is passed on to all and is in everyone as his own.
This is just after a paragraph where he accepts evolution as a theory Catholics can believe, as long as it does not claim the creation of the soul by natural processes.
There's plenty of reasons to have concerns about Huckabee, but this isn't one of them.