Mark DeSaulnier, a member of the U.S. Congress representing California’s 10th district since 2015, has been active on social media discussing various topics relevant to his constituents and broader legislative matters. He replaced George Miller in Congress and has a long history of public service including roles in the California State Assembly, Senate, and Contra Costa County Board of Supervisors.
On June 3, 2025, DeSaulnier announced the opening of the “2025 Congressional App Challenge”. The challenge invites middle and high school students from California’s 10th district to participate by submitting their apps by October 30th. This initiative aims to recognize young coding talents at a congressional level.
Later that day, DeSaulnier shared his statement on a proposal by the Trump Administration to eliminate the Chemical Safety Board. Details of this statement can be accessed through the link provided in his tweet.
On June 4, 2025, he expressed pride in his role in last year’s bipartisan Federal Aviation Administration Reauthorization through another tweet. He highlighted significant investments made for aviation safety and stressed the importance of ensuring these are fully implemented by the FAA to protect air travelers.
DeSaulnier was born in Lowell, Massachusetts in 1952 and currently resides in Concord. He graduated from College of the Holy Cross with a BA degree in 1974.



