Only two Senators have said they opposed filling the seat before the election and that is purely because they've been "allowed" to for the benefit of their next election campaigns. Like with the impeachment - Romney voted for it as it wouldn't change a thing. Just a day or two ago Romney
supported a nomination prior to the election and in his latest rally, Trump thanked him for the support.
And because the two Senators opposed filling the seat before the election doesn't mean they wouldn't confirm when it gets to the floor, either.
Romney signed an amicus brief
earlier this year urging the Supreme Court to consider overturning Roe v Wade (and has had that view going back to 2012 and beyond). He'll be all for the new judge as they will help fulfill that.