The simple answer is it was a good ass kicking, but let’s look at some numbers:
2006 Cook County overall Democratic Turnout 228,418
2008 Cook County overall Democratic Turnout 439,008
Cook County Increase in Democratic Turnout 92% Increase
2006 Chicago Turnout overall Democratic Turnout 390,891
2008 Chicago overall Democratic Turnout. 637,031
Chicago Increase in Democratic Turnout 62% Increase
3rd District Numbers
2006 Cook County 3rd 35,829
2008 Cook County 3rd 59,369
Cook County 3rd Increase 66%
2006 Chicago 3rd 45,721
2008 Chicago 3rd 55,280
Chicago 3rd Increase 21%
Lipinski Numbers
2006 Cook 18,956
2008 Cook 30,080
Cook Increase 59%
2006 Chicago 25,445
2008 Chicago 31,594
Chicago Increase 24%
There aren’t any easy answers there. Pera underperformed his Ided voters a bit, but was in the ballpark. The problem is that you expect to hit those numbers and then exceed them.
Given the anemic description of Lipinski’s campaign, the only answer I have is that this was a case of low information voters coming out and voting for the familiar name. The increased mobilization in the District was lower than the average overall and Lipinksi didn’t get a significant boost overall in percentages.
By those standards it doesn’t appear that Lipinski did anything amazing in terms of improving his standing, he just stayed even with past performance.