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he keep that momentum? and newt gingrich, by the way, did not use this opportunity at the podium to say congratulations, governor romney. nor did he even call the governor to concede florida. he just moved right on to the next stop. what does that mean? >> ashleigh, there's a huge buzz over facebook going public. you want a piece of the action? >> yes. >> you may need a lot of money to get in on the hottest ipo ever. christine romans is going to let us know if we can get in on the action. and this dash cam video. one officer watches as his partner swims to a sinking car. zero in. t...

>> reporter: there are about 250 people in the audience and they are all selected by linkedin. we're told that they are either linkedin employees or members of linkedin who submitted questions and all those questions were chosen by linkedin itself. some of them will be asked by audience members and some of them will be asked by the ceo of linkedin who will be there with the president. >> jessica, we know that obviously mr. obama, he relied quite a bit on social media and turned to social media quite a bit in 2008. is this a sign do you think he's planning to do the same thing for 201...