ACCORDING TO OBAMA Herschel Walker is a celebrity who wants to be a politician.
Walker responded:

President Obama was here last night. He said I’m a celebrity. He got that one wrong, didn’t he? I’m not a celebrity, I’m a warrior for God. He got something else wrong, too. Remember two years ago he told us to vote for Joe Biden, didn’t he? He got that one wrong, did he not? He’s lost twice in Georgia already, hasn’t he, so I think he probably needs to sit this one out.

I would have responded by noting that Obama is a politician who wants to be a celebrity.
But Walker did better....