tell me that there s no reason why i should believe and listen to the statistics. there are some very obvious by-products that we have to deal with every day. you can t teach a hungry child. you have to feed them first before they can learn anything. reporter: we spoke to principal alisha kiner who says you have to know your kids, know where they come from and catch things early if they go astray. that began by dividing the class by gender. there are obvious distractions that you avoid when you do that. but there s some real research out there that shows you that girls and boys learn differently. reporter: all that hard work paid off on this day, graduation day. christopher dean is now side by side with the president who gave the commencement address. success can happen here at booker t. washington, it can happen anywhere in memphis. and if it can happen in memphis,
and president obama makes some high school students cry. this hour, the inspiring against the odds story that brought the commander in chief to their school. i m wolf blitzer, you re in the situation room. first this hour, the shrimping republican presidential field. we ve seen prominent contenders opt out of the 2012 race in recent weeks, including former arkansas governor mike huckabee. say so long to the prospect with the biggest name, deepest pockets, and most outrageous remarks. that would be none other than donald trump. he announces an event to report the tv series, celebrity apprentice. after getting so many called from bob and from steve and everybody, i ve decided that we are going to continue onward well celebrity apprentice. we re going to continue making lots and lots of money for charity. i will not be running for president as much as i d like to and i want to thank everybody very much. thank you very much. it s been a great season. thank you. let s br