Barack Obama tries to clarify what his wife said about her feelings for the United States:

"What she meant was, this is the first time that she's been proud of the politics of America," he said. "Because she's pretty cynical about the political process, and with good reason, and she's not alone. But she has seen large numbers of people get involved in the process, and she's encouraged."

In Milwaukee on Monday, Michelle Obama said: "Let me tell you, for the first time in my adult life, I am really proud of my country. Not just because Barack is doing well, but I think people are hungry for change."

Some aren't persuaded.