Unity is great, sure, but apart from the entertainment value, there is an important practical reason to maintain the State of the Union’s partisan seating arrangement. A neat separation of the parties allows the American people to see, in real time, their positions on the president’s agenda and the issues of the day. It’s actually very informative and helpful to be able to easily assess which proposals the Republicans and Democrats support, respectively, through the decision to applaud. It also allows us to identify the few party-bucking independent thinkers who, every so often, stand up to clap while the rest of their colleagues remain seated.
Thrown together in one big bipartisan hodgepodge, congressmen and senators would still carefully regulate their applause, but that brief chamber reaction shot on TV becomes nearly impossible to decipher. The country could certainly benefit from more symbolic demonstrations of solidarity, but the State of the Union address is one instance where a stark partisan divide is actually good for democracy.