From the AP story:
Teachers Union to endorse Obama
WASHINGTON (AP) — The nation's largest teachers union plans to endorse Democratic presidential candidate Barack Obama now that the Illinois senator has clinched his party's nomination.
National Education Association President Reg Weaver said he will ask for a formal vote of endorsement at the NEA's annual meeting in Washington, D.C., in July, but that is likely to be just a formality.
"It's now apparent that Senator Obama has secured the necessary number of delegates to win the Democratic nomination," Weaver said. "With such a clear picture of what Senator Obama will do for public education and his commitment to partner with NEA on issues that affect our members across the country, every public school employee needs to get squarely behind the Obama candidacy."
The National Education Association represents 3.2 million teachers, administrators and other education professionals.