The Rachel Maddow Show 09/21/15

With Scott Walker out of the GOP primary race, who's next?

Nicolle Wallace, Republican strategist, and Beth Fouhy, senior editor for MSNBC.com, talk with Rachel Maddow about what went wrong with Scott Walker's presidential campaign and what his dropping out suggests about the other candidates who are polling at the bottom end of the Republican field. ... more Duration: {{video.duration.momentjs}}