To see the parade. There's a big parade. Afterward good old what's his name is taken from the Capitol to the White House in a closed car safe behind the bullet proof glass.
No one goes just to see a politician.
I've seen far greater "parades." In fact I used to be involved in them, every Friday night. It was called "rush hour" (what a misnomer - it should be called "slow to no moving hours!) on the LIE, a 100 mile plus parking lot!
Mark