Dan Koh left the Biden White House with a household worth up to $13.4 million.
That figure comes from financial disclosures filed when the Democratic congressional candidate departed the White House in January 2025. The disclosures also show that Koh reported nearly 60 trades in funds and securities during 2023 alone, all while drawing a $155,000 government salary.
According to a report, Koh’s household disclosed assets ranging from $3.9 million to $13.4 million at the time he left his White House post.
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The trading activity and asset totals have drawn attention now that Koh is running for Congress. Massachusetts state Rep. Tram Nguyen, one of his Democratic rivals in the race, called on candidates to be more open about their finances. Nguyen framed it as a matter of basic transparency for anyone seeking public office.
Koh’s path to the White House started with a role as chief of staff to Biden Labor Secretary Marty Walsh. He joined the White House staff in August 2022, serving first as deputy cabinet secretary. He later held the title of deputy assistant to the president and deputy director of the White House Office of Intergovernmental Affairs.
He is now competing in the Democratic primary for Massachusetts’ 6th Congressional District. The seat opened up after incumbent Rep. Seth Moulton stepped away from the House race to run for Senate. The district leans heavily Democratic, making the primary the race that matters most.
The scrutiny arrives at an uncomfortable moment for Koh. Voters across the country have grown increasingly skeptical of elected officials and candidates who profit from financial markets while holding government positions that can influence policy. Whether Koh’s trades created any conflicts of interest has not been established by the available disclosures, but the volume and timing of the activity are drawing questions he will likely need to answer on the campaign trail.
Nguyen’s call for transparency signals that the issue is unlikely to fade quietly in a competitive primary field.
