The only second-term midterm where the president's party gained was 1998, with Democrats picking up five House seats.

WSJ: Karl Rove: Obama Gears Up to 'Flip the House' in 2014

This paper defines the essential quantitative and qualitative characteristics of a U.S. force structure required to meet the two-MRC standard for the near term and midterm.

CENTERFORSECURITYPOLICY: Center for Security Policy | The Measure of a Superpower: A Two Major Regional Contingency Military for the 21st Century

Even during Herbert Hoover's one term, the midterm bounce in the Dow was 23.4%.

FORBES: Will Bush Break An 88-Year Bullish Tradition?