Our series continues about unprecedented politics, named for the famous Benjamin Franklin line in 1787: "A republic, if you can keep it." University of Denver political scientist Seth Masket provides historic context. Then, it takes a lot of work to keep Mustang standing strong outside DIA. Also, tech firm Ibotta makes a 10-year commitment to downtown Denver, which other businesses have fled. And the family stories behind Denver's Little Saigon at History Colorado Center.