Politico, with video (01:38):
In tackling the problem of childhood obesity, first lady Michelle Obama is doing something that her husband rarely does — talking about an issue bluntly in terms of race and helping urban America.
She is, some say, filling a role that Barack Obama seems less inclined to fill, serving as a kind of bridge from the White House to black America in much the same way that she functioned during the campaign, observers said.
In some ways, the first lady, who nudged the president to more clearly address the arrest of Harvard professor Henry Louis Gates Jr., can say things the president can’t, some observers assert.
"She knows she has a separate bully pulpit, and she doesn't use hers to step on his," Norton said.