That is exactly right. Liberals know this because they have been pulling this trick for years. Everyone wants to be the person who voted for the winner. It even happens in the past. JFK barely won in 1960, yet everyone seems to now claimed they voted for him. Conversely, Nixon won two elections, one by a monumental landslide, but now you can't find any swing voters who voted for him when obviously they all did.
The mud the DNC has been throwing for 4 years is sticking to the ones who throw it...the Kerry/Edwards types. This has not gone un noticed!