From your post, I take it that your "surprise" was that there was a picture of President Bush and the First Lady in a classroom, rather than there was a picture of President Bush and the First Lady in this specific teacher's classroom.
If I interpreted that correctly, I take it that it's not a common practice, at least at the school you teach at, to have the current President's picture in a classroom. (I must admit total ignorance as to what the normal, accepted practice is at the majority of schools.)
I'm curious as to what your reaction would have been to walk into a fellow teacher's classroom some 5 years ago to find a picture like this.
I don't think I was as politically aware back then, so it's hard to say.
But with respect to what happened today - I guess I am wondering: will anyone ask her to remove it? Will a parent complain? I am thinking this is not the end of this story, but rather, the first chapter.
Although, I was aware enough to notice teachers did not seem to matter much to Dem leaders.