From a good Rohter/Bumiller NYT story :
The president told reporters that if he saw the Venezuelan leader at the summit, "I will, of course, be polite." Mr. Bush added, "That's what the American people expect their president to do, is to be a polite person."
So no upstaging Chavez with 25,000-person rallies in any Argentine stadiums of his own. It's really only polite. BushCo had over a hundred thousand chanting his name earlier in the day.
"Look, I understand not everybody agrees with the decisions I've made, but that's not unique to Central or South America," Mr. Bush said. "Truth of the matter is, there's people who disagree with the decisions I've made all over the world. And I understand that. But that's what happens when you make decisions."
Que sera, sera, dude. After all, the planet is really just a focus group.