Well, possibly.
But she interprets failed president in the ordinary sense...did he do whats good for the Americans and their country?
We all know the answer to that.
Success is always going to be defined by whether the President got accomplished what he set out to do, not by how well the American people are living. Lenin was successful. Castro was successful. Mao was successful. But their people suffered. Reagan was only partially successful. He had to constantly fight a Democrat House, and was able to slow the growth of big government, but not set it on a path of reduction. He couldn't even get rid of the Department of Education, a little tiny brand new agency, and now look at what Obama can do with it to our nation's kids.
Reagan was successful. Obama has been more successful.