In 2018, I was a guest of Sen. Marsha Blackburn (R-Tenn.) at the State of the Union. The place was electric — political theater at its finest. Members of Congress, guests, and press were packed into a room that felt more like a pressure cooker than a chamber. And whoever designed those gallery seats clearly had smaller people in mind.We had to be there early, which meant a lot of sitting. I struck up a conversation with the man seated just behin…