Not that simple in Ayotte's case. If we end up with a liberal Democrat at least we know she's on the other side. Ayotte will undercut the Republicans and be the "cross the aisle" Senator who speaks out against Republicans.
If she wins you'll see her on the news as the "even some Republicans are against President Trump" Senator.
Why do you think she didn't go to the convention? To help elect Trump or to try to show her "liberal" credentials?
It is hard to know if she will help or hinder us going forward.
Except we will know, beyond all doubt, that a liberal Dem will hinder us, always.
Given these options, I’ll take being hindered sometime over being hindered always....... always