Most presidents, when they leave office, ultimately have a presidential library. It's a place to document their time in office with personal papers, records, artifacts, and often video footage and other exhibits. Currently, we are watching the presidential library of Barack Obama being built in Chicago. It doesn't seem to be going as planned, and so far, it does not look like it will be the most attractive building ever. While the Obama library is under construction, discussion is now underway about Joe Biden's presidential library. That may not be going as planned either. Presidential libraries cost money, a lot...