Exclusive: Top Harris adviser says Sun Belt’s back in play

Driving the news: "A month ago, I think it would have been hard for Democrats to compete in Nevada, Arizona, Georgia or North Carolina to win," said Plouffe, who was former President Obama's campaign manager in 2008.

• "I think those are all back as credible states Kamala Harris could win."
• He said that the election will likely come down to the seven key battlegrounds — Arizona, Nevada, Georgia, Michigan, Wisconsin, Pennsylvania and North Carolina — and Nebraska's 2nd Congressional District.

What he's saying: "We all have work to do. '16 was super close, '20 was super close, '24 will be super close.

• ""We're preparing for a race that will come down to a vote or two per precinct," he said.
• "We're running around talking about Minnesota, New Mexico, New Jersey, New York, all these states that are now out of reach for Trump," he said.

• "I think it's seven states and that's important, that gives Kamala Harris many pathways to get to 270 electoral votes."

State of play: Harris earlier this month brought a number of high-profile Obama veterans into senior advisory roles for the campaign.

• Plouffe was helping advise TikTok's CEO last year on how to handle efforts to ban the app in the U.S.
• He cut ties with TikTok when he took on the advisory role with the Harris campaign.

Go deeper: Harris remodels campaign with Obama alums