For nearly an hour Thursday afternoon, President Obama talked football, online shopping and car safety -- all in a news conference designed to talk about his signature health-care law.

Fumble! (Preston Keres/For The Washington Post)

Obama repeatedly sought to drive his points about the law home by using analogies, some more strained than others. Here's a sampling:

On the botched rollout of the law: "I mean, we fumbled the rollout on this health-care law."

On taking personal responsibility: "I'm very frustrated, but I'm also somebody who, if I fumble the ball, you know, I'm going to wait until I get the next play, and then I'm going to try to run as hard as I can and do right by the team. So, you know, ultimately I'm the head of this team. We did fumble the ball on it. And what I'm going to do is make sure that we get it fixed."

On the complex nature of buying insurance: "Buying health insurance is never going to be like buying a song on iTunes. You know, it's just a much more complicated transaction."

On new insurance requirements that prompted plan cancellations: "It's not a perfect analogy, but you know, we made a decision as a society that every car has to have a seat belt or air bags. And so you pass a regulation. And there's some additional cost, particularly at the start, of increasing the safety and protections, but we make a decision as a society that the costs are outweighed by the benefits of all the lives that are saved. So what we're saying now is if you're buying new -- a new car, you got to have a seat belt. Well, the problem with the -- the grandfather clause that we put in place is it's almost like we said to folks, you got to buy a new car, even if you can't afford it right now."

On initially being unaware of the Web site problems: "I'm accused of a lot of things, but I don't think I'm stupid enough to go around saying, this is going to be like shopping on Amazon or Travelocity, a week before the Web site opens, if I thought that it wasn't going to work."

So why did Obama use so many analogies? He was trying to drive home some simple, concrete points about a complicated issue with many moving parts. His chief goals were to (1) acknowledge mistakes, fall on the sword, and absorb blame and (2) talk about what he is doing to fix things. Sports can be an easily digestible way to explain success and failure. And name-checking online retailers puts the online exchanges in a familiar context.

And it's not the first time Obama has used analogies to drive home points. He compared Republicans to hostage takers during the government shutdown showdown, declaring that he would not pay a "ransom." Before that, he regularly cast the GOP as a reckless motorist who drove a car into a ditch. (New York Magazine has a more complete rundown here.)