He brought it up when he was running for congress in 2005 and the question of his retired rank was brought up at the time. When he got elected, he boasted about being the member of congress with the highest enlisted rank. He's said it since then and there are recent twitter posts of him saying it. Here's a video montage of him saying it or acknowledging it:
https://x.com/AlphaNewsMN/status/1821581829004247478/
I guess we'll find out. It defiinitely makes the slightest difference to Governor Walz.
When he retired what rank was he? I.e. literally the day before he retired what rank was he?