When the remaining members of the President's Committee on the Arts and the Humanities resigned en masse Friday morning, they left a hidden message.

The first letter of each paragraph of their resignation letter to President Trump spelled out the word "RESIST," the rallying cry of the president's opponents.

The first words of each paragraph are "Reproach," "Elevating," "Speaking," "Ignoring," Supremacy," and "Thank."

Twitter users were quick to make the connection.

Sixteen members of the committee, first established under President Ronald Reagan, resigned together Friday in protest of Trump's comments on the violence in Charlottesville, Va. The commission is made up of representatives from Broadway, Hollywood, and the broader arts and entertainment community. The other members had already resigned after Trump was elected in November.

Actor Kal Penn, a member of the panel, tweeted the letter Friday morning.

"The administration's refusal to quickly and unequivocally condemn the cancer of hatred only further emboldens those who wish America ill," the letter said. "We cannot stand idly by, the way that your West Wing advisers have, without speaking out against your words and actions."

Since Trump was elected, "resist" has been used as part of a campaign by Democrats to oppose Trump's agenda.