tamara keith from n. p.r.my walter from the political report. >> woodruff: finally tonight march madness has arrived once again and this year there's a twist: the university of kentucky is making a run for a historic and undefeated season. the men's basketball team is 34 and 0, and fresh off winning the s.e.c. championship on sunday night. kentucky comes in as a favorite in a tournament that often showcases cinderella stories. in an era of parity for the game, kentucky's become known for their talent, their coach john calipari, and whether his players leave school far too easily and too quickly. john feinstein of the "washington post" joins me now. welcome back to the program. >> good to be here. >> woodruff: how rare is it for a school to go undefeated into the final four. >> rare. the last time was nevada, las vegas, 1991 and they lost to duke in the national semifinal. however, people seem to forget that last year wichita state was 34 and 0 going into the tournament but because they aren't kentucky, all cap