Can anyone tell me why this spectacle exists in a country that supposedly is a Republic with 3 separate, equal branches of government?
This has nothing to do with which party is in power. It's just awkward and perverse to watch Congressmen, supposedly elected representatives of the people, fawning over a man in another branch of government that has the exact same amount of power in this country. They all sit there like people waiting for Beber, there is a grand proclamation that the President has arrived, and they all must sit and stare in religious reverence while he pontificates to them.
What's worse is that the Supreme Court justices sit there just the same. There to receive their Sermon from the Almighty Executive Branch.
For over 100 years, US Presidents simply wrote to Congress to inform them of what the Executive's priorities were. Washington had to do a speech in front of congress, but Jefferson stopped doing it since he too found it to be perverse and it stayed that way until the Power Monger Woodrow Wilson brought it back, in order for him to pontificate his positions to Congress in a grand speech.