And if I were the president, I'd go out there and I'd emphasize the things I have done, and I'd say, 'Some things haven't worked, and I'm sorry about that, but I keep trying.' And I'm - and I think the president is a very viable candidate, and you're going to have a real horse race here no matter who the Republican nominee is.

When it comes to public school education, we have been unwilling to measure our results. We've been unwilling to pay based on performance. We have tenure where, even if you can't teach, you can't get fired. We've been unwilling to invest in new schools.

If you want to do something for your children and show how much you love them, the single best thing-by far-is to support organizations that will create a better world for them and their children.

Most gun dealers follow the law and run honest businesses. But the statistics show that 1 percent of dealers sell more than half of all illegal guns. Why isn't the federal government going after them? Here's one reason: unlike mayors, members of Congress don't get a phone call in the middle of the night when a cop is shot and killed. They don't deliver the eulogies.

People vote against their own interests that all the time. But when you do the polling in the U.S., it has gone from less than 50 percent who thought climate change was real to 70-odd percent. And if you listen to the Republicans in Congress, they used to say, "Oh, climate change doesn't exist." Then they switched to "Well, it exists, but it's not man-made," to "Well, I'm going to address the issue." Why? Because when they go home, the local constituent says, "Wait a second. What are you talking about? We just had a flood. We haven't had rain in a long time." They can't get away from it.

And I keep saying, whether you like the president or not, everybody has to pull together and help the president because, as the president goes, so goes the country, as the country goes, so goes your job, your ability to feed your family, your government.

Most people won't have opportunity to do full-time service, but those lucky enough to have monetary wealth or some spare time really can make an enormous difference. As someone who's now in the public sector, and is seeing up-close-and-personal the real impact of what we do and what we give, I can tell you: every dollar and every volunteer help, in more ways than you can count.