I'm not impressed with his CV.
OTOH, becoming a SEAL is a transformational thing and maybe he's mending his liberal ways.
I don’t think he was a Navy SEAL. Just because he was an IO, does not mean he was a SEAL?
Per the linked Wiki and the referenced Newsweek article:
“He won’t say where he went in Iraq or precisely what he did there, except that he worked with Navy SEALs.”