Watch his preeminent video performance. Who he is. How sound his judgment seems when seeing testimony he deems as reflecting "extensive guardrails" against fraud.
UPDATE: In fairness to Emmer he has made no effort to scrub that video, and others at the time SBF testified may have had equal trust in the bona fides of SBF and his FTX crypto exchange.
So apart from SBF and his ending in jail, Emmer opposes Central Bank Digital Currency handled by the Fed. We are not there, and Emmer is correct that it would require an act of Congress to authorize a Fed-run retail CBDC program. One serving people directly, people banking digital currency via an account with the Fed, as opposed to some arrangement between domestic and/or international financial firms - where arrangements already exist. His intent is to preemptively stymie the possibility before the issue has had a full airing.
I've voted against Emmer every chance, and will again this November. That's all for now.