Presidential Election: Shouldn't we be wary of anyone from either party who wants to wield that kind of power?

Yes, we should. One word is the difference between peace and possibly anothr world war. Me, personally, I am going for whoever is for a peaceful solution to the war, no blood, no death. We are killing to keep peace. That is one of the biggest oxymorons ever! So, to answer your question, yes, we should take extreme caution with our choice.