And then there were four. The committee in charge of picking a site for President Barack Obama’s presidential library and museum narrowed the playing field to four illustrious institutions of higher learning, with two in Chicago. The University of Chicago, University of Illinois at Chicago, Columbia University, and the University of Hawaii have until December 11 to submit their bids, just in time to kick back and sip some eggnog while the president gears up for his last two years in office.