This may be a small thing, but:
I hate, hate, hate the lazy modern presidential habit of ending all major addresses with the phrase "And God bless the United States of America" or simply "God bless America."
I love the Irving Berlin song. I agree wholeheartedly with the sentiment. But a little chunk is hacked away from the national brain each time a president gets out of a speech not with a thought or original phrase but with this mindless pablum. This has become the political equivalent of "Have a nice day!"