Is Sen. Hillary Clinton feeling any doubts about winning the Democratic nomination for president? Not at all. "It will be me," Clinton tells Katie Couric in an interview to air Monday on the "CBS Evening News With Katie Couric." The broadcast airs at 6:30 p.m. on WKMG-Channel 6. Couric also asked if Clinton is concerned that Oprah Winfrey could boost Sen. Barack Obama by campaigning for him in three key states. "No, at the end of the day," Clinton says. "I'm proud to have my husband support me ... with his knowledge, experience and incredible ability to vouch for me."