Joe Manchin? Who looks at the gridlock in D.C. and says: "Yes, I want more of that." Ask me when someone who didn't vote against Roe v Wade decides to declare.
Joe Manchin is such an anachronism at this point. If this were 10-20 years ago, he'd just be a middle of the road Republican. Since it's 2023, he's too far left for the nazis modern Republican Party, and on the wrong side of just about every main stream Democrat issue. The only thing you can assume if Manchin runs is that he has some big donors that really want to see Trump win that will set Manchin up with a cushy job as a lobbyist.
He's not saying "I want more gridlock", he's saying "I want more of whatever personally benefits me, and I have to cause gridlock to get it, that's just fine".