Easley agreed to the endorsement after returning from an economic development trip to Italy, reports Rob Christensen. Clinton is expected to fly to Raleigh on Tuesday for a joint event with Easley.
"We are excited about this opportunity," Hendrickson said.
Easley's office declined to comment.
An Easley endorsement would be the first endorsement for Clinton from a major North Carolina political figure. Three members of North Carolina's congressional delegation have endorsed Sen. Barack Obama.
Easley does not have the same sort of political machine that Gov. Ed Rendell of Pennsylvania used to help deliver votes for Clinton in that state.
But Easley is popular with rural, white, blue-collar Democrats, the sort of voters that Clinton has successfully targeted in wins in Pennslyvania and Ohio.
The Clintons have been quietly courting Easley, who is also a Democratic superdelegate, for months. Former President Bill Clinton has had numerous telephone conversations with Easley.