The evidence strongly supports the statement that Scott Bessent, as US Treasury Secretary, has expressed support for Senator Cynthia Lummis’s efforts on crypto market structure. First, multiple official U.S. Treasury sources confirm that Scott Bessent holds the position of Secretary of the Treasury, validating the first part of the claim. Second, several highly relevant and authoritative sources document a collaborative and supportive relationship between Bessent and Lummis on this specific policy issue. A report from the American Bankers Association's journal details a direct exchange during a hearing where Secretary Bessent, in response to Senator Lummis's questions on crypto, stated he "will work to ensure" certain outcomes. This indicates a commitment to collaboration, which is a form of support. Furthermore, Senator Lummis's official X (Twitter) account reposted content from an account identified as Bessent's, an action that signals a public alignment and implicit endorsement. Other sources confirm their direct engagement on financial and crypto policy in official settings like Senate Banking Committee and Financial Stability Oversight Council (FSOC) hearings. There is no contradictory evidence presented; the sources are consistent in portraying a positive and collaborative professional interaction on the topic. While the sources do not contain a direct quote from Bessent stating, "I support Senator Lummis's efforts," the cumulative evidence of his public statements, commitments to collaboration, and the positive interactions between their offices makes the statement highly likely to be true.