Ed Huntress wrote:

This isn't a matter of Federal powers. This is the President excercizing his
right to free speech. We all have that power, president or
candlestick-maker. Do you deny him that right?

Big difference between his right and my similar right.
He can command that his speech be imposed on the entire nation, or close
to it. That's known as the Bully Pulpit, and it's apt.