Around midnight on July 16, New York Times chief political correspondent Adam Nagourney received a terse e-mail from Barack Obama’s press office. The campaign was irked by the Times’ latest poll and Nagourney and Megan Thee’s accompanying front-page piece titled “Poll Finds Obama Isn’t Closing Divide on Race,” which was running in the morning’s paper. Nagourney answered the query, the substance of which he says was minor, and went to bed, thinking the matter resolved.