You do realize it is invalid to compare a regional economy with the national economy as a whole to determine the benefit (or lack thereof) of the tax cuts, I presume?
Also, why is the start date well before the tax cuts were implemented? Cherry picking to make the invalid comparison look even worse, perhaps?
Not only that, but a state that already has lower than average unemployment levels would not be expected to increase employment at the same rate as a region with much higher starting unemployment levels.
That Krugman graph is data cherrypicking in order to mislead at its worst.