Well, let's see.
The first two years of the Reagan presidency (1981-1983) were spent coming out of the hole of the greatest depression since the 1930s; we'd gotten deep into that because of the incompetencies of the Democrat who preceded him.
After which followed the longest uninterrupted growth (no recessions) in the economy in American history, the line on the chart always upward, never dipping.
That is, until the last two years of the Bush presidency (1991-1993), after Vast Teddy and the other Democrats, who controlled Congress, got their job-killing tax increases.
Things were still in a slump the first two years of the Clinton presidency (1993-1995), until the Republicans took Congress, and the economy took off again.
And the economy the first six years of the second Bush presidency (2001-2007) was robust, until the Democrats took control of Congress, when the current recession, depression, began.
The Republicans made substantial gains in the mid-term elections of 2010, but while impressive, still not enough to steer the disastrous economic policies of the Magic One away from the cliff; only to slow the erosion down.
It's reasonable to expect that the first two years of the Romney presidency (2013-2015) are going to be rough, as he and the other Republicans dig us out of this hole.