Joe Manchin...
“If they start with investigations, Michael, it’s over,” Manchin, who was a Democrat before becoming an independent, told CNN host Michael Smerconish last month. “They’re going to tee up everything in 2028 for a Republican takeover completely.”
Manchin urged Democrats to concentrate on legislation aimed at reducing Americans’ cost of living rather than becoming “consumed with retaliation and retribution,” arguing that an investigations-first approach could ultimately return Republicans to power in 2028.
They need to do both. It doesn't really matter if they don't try to impeach him again...they still don't have enough votes in the Senate to actually remove him from office anyway.
But, they absolutely need to investigate him, and anyone else implicated in his obvious corruption. That way, they will have already accumulated all the evidence they need to prosecute him, as soon as he's out of office.
And in the meantime, if they don't also do something to bring down the cost of living for average Americans, they aren't going to have the chance to do anything about any of it, since voters will have already turned on them by 2028.