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A demonstrator chants while picketing in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

A demonstrator chants while picketing in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

A demonstrator pickets in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

A demonstrator pickets in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)

Demonstrators picket in support of the National Education Association Staff Organization outside the Pennsylvania Convention Center, Friday, July 5, 2024, in Philadelphia. (AP Photo/Matt Slocum)