The dates under consideration are thus:
Jan 1, 2006 to August 31, 2006 for Bush; and
Jan 1, 2014 to August 31, 2014 for Obama.
Both eight-month periods are located in the respective president's sixth year, in the first half of the year before the midterms.
In both cases, the President's job approval rating hit lows in the low 40s.
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