After publicly sparring in the fall, the White House and the U.S. Chamber of Commerce are trying to make up.

In an extraordinary exchange of letters written after last week’s State of the Union address, Chamber President Tom Donohue and President Barack Obama agreed to disagree on some issues and work together where they can.

In a letter to Obama initiating the exchange, Donohue agreed to support the administration’s goals of reforming education, doubling exports, expanding nuclear power and domestic drilling, improving worker training and funding infrastructure projects.

“While we don’t agree with every idea in your speech, we support the priorities I mentioned and will work vigorously to achieve them,” Donohue wrote in the Jan. 28 letter.

On Monday, Obama responded with a more expansive “Dear Tom” letter that thanked Donohue for his “kind comments” about the speech and welcomed the Chamber’s help moving his agenda through Congress.

The correspondence, which was obtained by POLITICO, caps a quieter, gradual thawing of relations between the administration and the business group that had grown frosty during the 2009 health care and energy debates.

Tensions eased after White House chief of staff Rahm Emanuel addressed Chamber members in November, and the two camps had continued to communicate with each other.

But, in December, the chill attracted new attention when the Chamber was not invited to attend a White House jobs summit.

Obama’s decision to reach out to Donohue reflects the changing politics and policy priorities in Washington.