Former President Bill Clinton to Appear on CBS SUNDAY MORNING, 10/28

Former President Bill Clinton is back in the political fray, and he tells CBS SUNDAY MORNING WITH Charles Osgood he's done it because he's concerned about the outcome of the coming election.

His reentry into the political world is part of a wide-ranging interview with correspondent Rita Braver, in which Clinton shares his thoughts on his life, the presidential race, his wife, Secretary of State Hillary Clinton, and his work out of the White House.

Clinton says he's gotten back into the political scrum because he cares about the country. "I think if America makes the wrong decision, it will have very damaging consequences," he says. "And I've done it more than anything else, because I believe President Obama has made better decisions than many people give him credit for."

Clinton has changed significantly since leaving the White House. He's had a bypass operation, become a vegan and turned into an advocate for healthy eating for kids. He's also has a new understanding for his political rivals.

"When your ambition is slaked, it's easier. It's easier for me to forgive people for things they did to me when they were trying to keep me from beating them," he tells Braver.

To that end, Clinton also has a realistic view on his own mortality. Many of the key male figures in his life died, so he does think about his own future. "I guess it sounds morbid or spooky to some people – to me it's just as natural as water flowing," he says. "I feel so blessed to have lived the life I've lived. And I feel great. And I'm determined to live to be a grandfather. But I just think that the older you get, the more you want every year to count."

Braver's full interview with Clinton will be broadcast Oct. 28 on CBS SUNDAY MORNING WITH Charles Osgood (9:00 AM, ET) on the CBS Television Network. Rand Morrison is the executive producer.