I think he'd rather have a pliant Republican Congressional majority than a noisy oppositional Democratic majority, especially if they keep impeachment on the table for the ensuing two years.
BTW, I do think within the range of outcomes is that Democrats take the House and Senate and, assuming they get seated, by the time the 2028 election is nigh, bring enough Republican senators on board for a successful impeachment of Trump. By that time they will have drained as much money as they're gonna get out of a Trump regime anyway, and they will finally be legitimately fatigued by the constant mayhem, so that might be the time they will want to flush MAGA control of the part ydown the toilet, especially to save their own electoral chances. It might even be the surprise October Surprise.