Use the White House contact form: https://www.whitehouse.gov/contact/
Call the White House switchboard: +1-202-456-1414
Write to the White House mailing address: The White House, 1600 Pennsylvania Avenue NW, Washington, DC 20500, USA
Contact President Trump through his official website or campaign website if available
Contact his official social media accounts on X, Facebook, or Truth Social
Contact his office or organization through any publicly listed official contact information
Use the White House comment line: +1-202-456-1111