Uh...the good old Laffer laugher. This is such a wrong headed op-ed that it deserves a response. Krugman does a great job of exposing Laffer.

https://mobile.nytimes.com/blogs/krugman/2015/04/10/the-laffer-swerve/?referer=

Quote: "Republicans are fixated on the boom that followed the 1981 tax cut (which had much more to do with monetary policy, but never mind). But they predicted dire effects from the Clinton hike; instead we had a boom that eclipsed Reagan’s. They predicted wonderful things from the Bush tax cuts; instead we got an unimpressive expansion followed by a devastating crash." 
NYT