Actually I am right.
State of the Union Messages to the Congress are mandated by Article II, Section 3 of the United States Constitution...
True. But it does not mandate that the speech be given in person, and from the time of Thomas Jefferson up until Woodrow Wilson in 1913 the President informed Congress of the state of the Union in writing only. And presidents after Wilson have occasionally declined to give the state of the Union in person. The last president to do so was Carter in 1981.
Separation of powers denies the president the right to do much of anyting in the Capitol without invitation. That includes addressing the Congress, either jointly or separately.
lol, you silly boy. You still got it wrong.
I continue to run into people who are unaware that members of the House may not be on the floor of the Senate without Senate-member escort, nor can they be in the Senate press gallery without same, vice versa. By-invitation is big-time in Washington, separation of powers engenders protocol.
I've had to clarify that bit about the SOTU message mandate not being a speech given in person at time or two my own self, though usually it's some family dinner. ;)