President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE donated his salary from the second quarter of 2019 to the Surgeon General's office, the White House announced Friday.

The Surgeon General's office falls under the Department of Health and Human Services. The White House said the donation will help address the opioid epidemic and the growing use of e-cigarettes by teenagers and children.

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The president pledged when he took office that he would not accept the $400,000 annual salary that comes with the job. He has donated his salary in quarterly installments to various government agencies.

The president donated his first quarter salary from 2019 to the Department of Homeland Security.

Last year, Trump donated his salary to the Small Business Administration, the Department of Veterans Affairs and the National Institute on Alcohol Abuse and Alcoholism.

In 2017, he gave his salary to the Transportation Department, the Health and Human Services Department for the opioid epidemic, the National Park Service and the Education Department.