President Obama ups ante on health overhaul

President Obama is significantly raising his personal stake in the effort to overhaul America's healthcare system, as Democrats and the public express growing unease about the costs. Obama has faced criticism from some quarters for being too removed from the health debate, and he may have little choice but to get more deeply involved. Obama supporters still are clamoring for passage of legislation by August, and House leaders signaled that they will attempt to hold a vote by the end of this month.