First lady Michelle Obama addresses DNC

>> obama, her speech tonight, one of the featured events this evening in prime time , certainly, andrea mitchell is down alongside the podium here in charlotte. andrea?

>> reporter: brian, she's now a political superstar, far more popular than her husband, once a reluctant campaigner, now she's a woman with a mission. michelle obama is now a political pro. her husband's best campaigner, hardly needing to practice with the teleprompters or get a feel for the stage. aids say she will try to project empathy toward struggling middle class families and motivate women voters.

>> this election ladies is a choice about supporting women and families in this country.

>> reporter: the president said he'll be watching at the white house .

>> i'm going to be at home and watching it with our girls, and i am going to try not to let them see their daddy cry. because when michelle starts talking, i start getting all misty.

>> reporter: ryan see crest asked mrs. obama about ann romney 's speech.

>> reporter: ann romney wants to be the new first lady, she gave a much buzzed about speech at the rnc, what was your reaction to her speech?

>> you know, i didn't watch it.

>> reporter: mrs. obama will try to inspire young people to vote. here with ross matthews for e! news.

>> voting is how this country runs. and it's our responsibility at whatever age to exercise the rights that people before us fought so hard for us to have.

>> in the white house , she's worked for military families, fought childhood obesity, become a regular on late night.

>> being out there, touching people, talking to people, it really gets me focused on what we're doing and why we're doing it.

>> reporter: if her husband is sometimes called too cool, she's all about hugs. connecting to people with a physical embrace.

>> look, she's completely at ease, completely comfortable, again, the best advocate that we could possibly have for the president.

>> reporter: four years ago, mrs. obama was trying to make america more comfortable with her. now she's trying to make americans feel better about her husband. brian?