WASHINGTON—Sens. Pat Toomey (R., Pa.) and Cynthia Lummis (R., Wyo.) sit on the powerful Senate Banking Committee and have been advocates for a light government touch toward the growing—and largely unchecked—cryptocurrency market.
They also own cryptocurrency assets. Ms. Lummis’s roughly $250,000 of bitcoin makes her the most heavily invested U.S. lawmaker in the digital asset. Mr. Toomey has smaller holdings in crypto-related investment vehicles. Together they are the only two senators with such investments, according to a Wall Street Journal review of public financial disclosures.