When everyone’s taxes go up, the House GOP can say “Here is our bill that would have prevented it. Where is the Senate bill?” The Senate has made no tangible attempt to prevent the tax increase.
If the nation is as stupid as they were in November, then the GOP may still be blamed by a majority of the voters. However, once the reality of smaller paychecks hit everyone, I think those voters just might get somewhat more focused on the matter.
The Senate passed a bill months ago!