Exactly. Manchin's refusal to support liberal ideas is purely tactical -- he represents hillbillies. Everything he tub thumps against in public he will quietly allow under cover of arcane legalese, exactly as Republicans have been doing for the last half century.
Breaking news: 90% of them on both sides have no values or principles. They are interested in saving their biennially more cushioned hides because it is a good gig for graft and women who look like Jill St. John still sleep with men twice (and thrice) their age for proximity to power.
speaking of Manchin, as much as we complain about him, we better hope he has good genes and doesn't want to retire. When he's gone, that seat is lost forever -- and it won't be replaced by someone with even close to the "concern" over the Trumpification of the party as Susan Collins or Mitt Romney claim to have.