According to data from OpenSecrets.Org, from 1992 to 2006, Pfizer gave 74 percent of its campaign contributions to Republicans. Since then, particularly after Hank McKinnell left as CEO, Pfizer is giving slightly more to democrats than to republicans. In the current cycle, 54 percent of contributions go to democrats.
(Data from OpenSecrets.Org. Graph by KEI.)
Cycle Democrats Republicans %D %R 2010 $123,107 $ 104,800 54% 46% 2008 $979,548 $ 911,593 52% 48% 2006 $623,910 $1,271,789 33% 67% 2004 $582,164 $1,185,042 33% 67% 2002 $386,261 $1,593,711 20% 80% 2000 $376,125 $2,102,041 15% 85% 1998 $223,350 $ 911,460 20% 80% 1996 $195,530 $ 680,086 22% 78% 1994 $197,270 $ 349,383 36% 64% 1992 $ 81,750 $ 129,257 39% 61% 1990 $ 80,600 $ 68,950 54% 46% TOTAL $3,849,615 $9,308,112 29% 71% 1992-2006 24% 76% 2008-2010 52% 48%