The president does not have power under the Constitution to unilaterally authorize a military attack in a situation that does not involve stopping an actual or imminent threat to the nation. As commander in chief, the president does have a duty to protect and defend the United States. In instances of self-defense, the president would be within his constitutional authority to act before advising Congress or seeking its consent.

The fact that my 15 minutes of fame has extended a little longer than 15 minutes is somewhat surprising to me, and a matter of bewilderment for my wife.

Some technologies don't pan out; some companies fail. But I will not walk away from the promise of clean energy. ... I will not cede the wind or solar or battery industry to China or Germany because we refuse to make the same commitment here.

I've been very good for gun manufacturers.

I think raising wages, investing in infrastructure, making sure that people have access to good educations that equip them for the jobs of the future. Those are all agenda items that would help alleviate some of those economic pressures and dislocations that people are experiencing. The problem was I couldn't convince the Republican Congress to pass a lot of them.

So how do Latinos feel if there's a big investment just in the African American community, and they're looking around and saying, "We're poor as well. What kind of help are we getting?" Or Asian Americans who say, "Look, I'm a first-generation immigrant, and clearly I didn't have anything to do with what was taking place."

I'm a strong believer in strong encryption.