Presumptive Democratic presidential nominee Hillary Clinton said President Barack Obama s greatest accomplishment during his presidency was raising his two daughters.

"You know my husband and I know a little bit about how hard it is to raise a child in the public eye, in the fishbowl of the White House," Clinton said Tuesday in Charlotte, North Carolina, while introducing the president on her campaign trail for the first time . "But the Obamas have done a fabulous job.

I happen to think those two young women may be the most impressive accomplishment of all," Clinton continued. "And it's one of the many reasons why it means so much to me personally to have the president's support in this campaign.

Obama's eldest daughter, Malia, celebrated her 18th birthday on Monday and plans to attend Harvard University in the fall of 2017 . Her sister, Sasha, intends to continue high school at Sidwell Friends School for the next two years.

Former first daughter Chelsea Clinton was 12 years old in 1993, when former President Bill Clinton entered the White House. She graduated from Stanford University in 2001.