In such a polarized country, even billionaires like JB Pritzker and Ken Griffin won’t let their political archrivalry get in the way of doing business. The Illinois governor earlier this month paid the founder of the Citadel investment firm $19 million for the top two floors of a 38-story luxury building on Chicago’s Near North Side where Griffin once resided, sources familiar with the transaction told the Tribune. The combined purchase at the 9 W.