Obama: 'I Don't Know What's in Limbaugh's Heart' Won't comment on apology but reiterates that insult was out of bounds By Matt Cantor, Newser User Posted Mar 6, 2012 2:29 PM CST 70 comments Comments Rush Limbaugh apologized for calling a law student a 'slut.' (AP Photo/Las Vegas News Bureau, Brian Jones) (Newser) – Rush Limbaugh's "slut" attack on law student Sandra Fluke has no "place in public discourse," says President Obama. At his news conference today, Obama explained that he called Fluke after the incident because he wants people to be able to speak their minds about policy, noting that he wouldn't want his daughters "attacked or called horrible names" for voicing their opinions, the AP reports. As for Limbaugh's apology, Obama said he's not sure "what's in Rush Limbaugh's heart, so I'm not going to comment on the sincerity" of it. See the transcript of the exchange at USA Today. For more on the news conference itself, click here.