I don't think I've ever "teared up" during a President's State of the Union Address to Congress - until that unforgettable moment during President George W. Bush's State of the Union early in 2005. For me, it had absolutely nothing to do with politics. It was just an intensely human moment that almost transcended politics.
At one point in his speech, he paid tribute to the Iraqi people for their courage in going to the polls in the face of incredible danger. Then, the President introduced a guest that was sitting in the gallery next to the First Lady...