President Obama won't be giving the speech he might wish tonight.
All presidents accepting their party's re-nomination seek to shift from a message of hope and change to one of progress and accomplishment. Although Obama will certainly talk up the highlights of his term, he won't want to sound triumphant — not with a jobs report due tomorrow that's expected to show a 43rd straight month of U.S. unemployment above 8 percent.
"In an acceptance situation, you want to paint a bright picture of all the wonderful things that have happened over the past four years," says Martin Medhurst, a professor of political science and rhetoric at Baylor University.