Of course, Clinton was full of sh!t 99% of the time, but once his first two years were an utter failure he decided that his own career was more important than his liberal principles and toed the Republican Party line for the most part.
The most lasting impacts of these presidents are their Supreme Court appointments, and Reagan's weren't much better than anyone else's.
This is true in the fact that he allowed many, many liberal bills to become law as well as breaking many campaign promises like they all do. But, you also have to add the disclaimer that all Presidents have to deal with the politics of their office and it's give and take. Too bad many here don't understand this?
There's no way to argue that W could manage Congress the way Reagan did. The tax cuts passed with Reagan there to sign them haven't been repeated. W's shell game tax cut will amount to diddly in the end, as everyone who got a refund from the IRS will find out. That $600 check comes right off the top of a refund. W will be history before any of it that amounts to much will come due and Congress will scrap it all as soon as he's back in Crawford pretending to be a rancher again.