I think a lot of it had to do with him saying so little to the public. He seemed all right on Fox News though. Talks like a man who spends a lot of time in front of a screen.
Why don't you simply buy a new keyboard? Even the most difficult laptops are pretty easy to get apart. It'll take removing anywhere between 2 and 70 screws, but still a hell of a lot easier than, say, any major operation on a car.
Getting mighty defensive there over a $20 part. Just type your captcha.