Latin America: An eruption of anti-U.S. bluster hasn't done Hugo Chavez much good back home. Thousands of Venezuelans rallied Saturday for his challenger, Manuel Rosales. This time they may give Chavez the boot. Rosales drew big crowds, including the poor, but Chavez's own rally the next day drew only a few thousand supporters, nearly all of them angry young men in red T-shirts. Despite an oil windfall, populist social spending and a big mouth abroad, all is not well for Chavez at home. The Sunday rally may signal a swing toward Rosales, who has quietly campaigned through the countryside and...