If you believe that, you have to believe Obama has the second most donations. The men and women serving our country in the military do not make enough to contribute to anti-Americans like Cut and Run or Obama. There may be a few gays and druggies in the military who want the surrender monkey or the other terrorist supporter, but not many. Most serving love our country and do not want it destroyed by either of the two who want to blame America for every problem in the world. The two you say have the most military contributions.
This generation, even in the military, doesn't just blindly trust what the politicians say like Vietnam era Vets did. This generation has access to news, information & opinions via the internet -- and so do their wives and families -- in ways that earlier generations never had before. (My husband said that when he went to Vietnam, he was the only one in his group who even knew continent Vietnam was on.) And with information on politics, locations and wars, come opinions -- political opinions -- again, political opinions that earlier generations of military really didn't have before they went.
This is an all volunteer military. They are in it because they chose it. It's more like "employment" than being drafted was.
Given all that, should it really be such a surprise that they would attempt to also chose their own boss -- their Commander and Chief? Especially, given which Commander and Chief they get might mean the difference between their own life & death? I really don't think it's so shocking. That they'd choose political candidates and send them a few bucks really doesn't surprise me at all.
That said, it's Obama's popularity with them that astounds me -- but then again, his picture is on their wall everyday whether they like it or not.