Joe Manchin is a Democrat in name only.
He's infuriated his own party time and time again because of his refusal to vote strictly along party lines. His strategy of using common sense to evaluate every decision is HATED by liberals.
If everyone thought like Joe, then liberals wouldn't be allowed to rule the country, and they HATE that. That's why people like Kyrsten Sinema of Arizona and Tulsi Gabbard of Hawaii have all but been forced out of the Democratic Party.
Unless you're "woke," believe that white people and straight people are evil, and know that ALL Republicans are bigots, they don't want you.
That's why Joe Manchin doing things like opposing President Joe Biden's nominee to lead the IRS infuriates the left so much.
"At every turn, this administration has ignored congressional intent when implementing the Inflation Reduction Act," Manchin said.
Manchin is standing up for common sense. That is NOT something liberals are used to seeing within their own party.