Fun with the ABC/Washington Post poll

Published on Thursday, October 18, 2012 By Brad Wardell In Politics

Headline: Obama has a 3 point lead over Romney in the latest ABC/Washington post poll.

As a stat nut, I like to look at the internals.  So here they are:

http://www.washingtonpost.com/wp-srv/politics/polls/postabcpoll_20121013.html

Lots of interesting stuff in there. Especially when you get to the bottom:

image

Wait a second.  So they changed their sample size since the September (pre debate) poll to give Democrats a +9 point advantage in likely voters versus a 3 point advantage of LV in September?

That seems odd.