WBAL NBC Nightly News August 20, 2012
good evening. it was an interview with a candidate on television, the kind of thing that happens every day during this campaign season but when the questioning turned to abortion in the case of rape the republican candidate for u.s. senate in missouri answered in a way he came to regret. suddenly it exploded well beyond the borders of missouri in this campaign season where every word counts. it's where we begin tonight with nbc's andrea mitchell. >> reporter: fear their hopes for the white house and control of the senate could turn on what happened at a st. louis tv station when the ...