Portions of the Interview to air Tonight on "World News with Diane Sawyer"

Former First Lady Laura Bush will sit down with ABC News senior political correspondent Jonathan Karl today for an exclusive interview. On the eve of Mrs. Bush's address to the international AIDS conference, she talks to ABC News about her family's efforts to raising awareness about the international fight against AIDS and her recent trip with President George W. Bush to Africa. ABC News will have special access to video footage from the Bush's week-long trip. In addition, Jonathan Karl will talk to Mrs. Bush about life in and after the White House.

Portions of the interview will air TONIGHT, JULY 25 on "World News with Diane Sawyer." The interview will also be featured on ABCNews.com, Yahoo!, and ABC News Radio.

• RELATED: George and Laura Bush Drop by Romney HQ

• RELATED: Elton John: George W. Bush Taught Me a Lesson

"ABC World News with Diane Sawyer" airs nationally at 6:30pm/ET. Michael Corn is the executive producer of the broadcast.