Smithsonian Secretary Lonnie Bunch resigns amid attacks from Trump administration

Bunch said pressure from the White House did not lead to his resignation.

Smithsonian Secretary Lonnie Bunch is stepping down from his position, the institution said Tuesday.

Bunch has been head of the Smithsonian for the past seven years.

This is a developing story. Please check back for updates.

ABC News' John Santucci contributed to this report.

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