Barack: Don't raise taxes during a recession

In August of 2009, Barack was interviewed by Chuck Todd on the economy. When it came to the issue of raising taxes on the wealthy, Barack was asked by Scott Ferguson to:
Explain how raising taxes on anyone during a deep recession is going to help with the economy.
Barack answered that it would be a mistake to raise taxes at that time. He said that it would cost jobs:

Well, first of all, he is right. Normally, you don't raise taxes in a recession, which is why we haven't and why we have instead cut taxes. So I guess what I would say to Scott is his economics are right, you don't raise taxes in a recession. We haven't raised taxes in a recession. ...
...So he is absolutely right, the last thing you want to do is to raise taxes in the middle of a recession because that would just suck up — take more demand out of the economy and put businesses in a further hole.

Huh.
That was August of 2009.
What changed?