BOTH REPUBLICANS & DEMOCRATS LOSE GROUND TO INDEPENDENTS

Pew Research - Over the first four months of 2009, the Republican Party has continued to lose adherents. In total, the GOP has lost roughly a quarter of its base over the past five years.

But these Republican losses have not translated into substantial Democratic gains. So far in 2009, 35% of adults nationwide identify as Democrats, about the same as in 2008 (36%). While GOP identification has fallen seven points since 2004, the Democrats have gained only two points over that period. Instead, a growing number of Americans describe themselves as independents, 36% in 2009 compared with just 32% in 2008 and 30% in 2004.

Looking at the individual monthly surveys since December suggests that both political parties are facing declining membership in the wake of an engaging election cycle. In the Pew Research Center's April 2009 survey, 33% identified as Democrats, down from 39% in December 2008. Over the same period, the share calling themselves Republicans has fallen from 26% to 22%. By contrast, the number of independents has risen from 30% in December to 39% now.