"It's not uncommon for poverty to go up three or four years after a recession is over."However, this graph, done by the Christian Science Monitor based on Census Bureau data, says otherwise. Note that in most cases, the increase in poverty preceded the onset of a recession and before 1990 tended to level off and start a slow drop almost immediately after the recession ended. And in no case, not even after the 1990 recession, did poverty continue to increase for four years.
We of course shouldn't be surprised, but it still should be noted that Johnson's claim is trash.
Updated to clarify the source of the graphic.