Complex sentence: The constitution requires the President give an update on the state of the union "from time to time", but no specifics are outlined, and only in recent years has the president given the SOTU as a public speech.
Split into simpler sentences: The constitution requires the President give an update on the state of the union "from time to time", but no specifics are outlined. Only in recent years has the president given the SOTU as a public speech.