Whether Republican Watson or Democrat Watson wins, it's already an improvement in that Watson, being a computer, will actually execute policy the same way he said he would during his campaign.
Or Watson learns (through gradient descent of course) that you can make wild campaign promises to win the election and not actually execute on that policy because it's more beneficial to make grand promises while running and not rock the boat while in office.
So try it out and put Watson in both modes. Ask him some questions, and do a voting poll to see what the sample size likes about both of them. It might be a good way to see how far Watson can be pushed.