Today At Tnr.com

• Barack's Big Tent: The Obama campaign's DNA is changing as it adds political insiders and Clintonites. Will it still function? By Jonathan Cohn
• How Obama’s Decisions Are Made: An Interactive Tour Of Obamaland’s Wonks By Jonathan Cohn
  
• The TNR Q&A: ‘Stuff White People Like’ Author Thinks White People Wouldn’t Know A Herd Mentality If It Trampled Them By James Martin
• Bush Democrats: Where Obama’s Most Persuadable Voters Can Be Found By Nate Silver

And, as always, check out our election-news blog The Stump, environment and energy coverage on The Vine, Marty Peretz's The Spine, and the current issue of the print magazine.