Tuesday marks President Obama's last State of the Union address, and he's promised it will be one with big ideas, not just for the next year, but for the future.
But he will also be speaking of those who are no longer here to listen to his address. In their honor, First Lady Michelle Obama will leave one guest seat in her box empty, to honor those victims of gun violence.
You can watch the State of the Union online, and we will be hosting an open thread on Tuesday night.
