"Al Gore is fat" is shorthand for all of the ad hominem (meanie-meanie-bo-beanie variety) that people have heaped up on Al Gore for his attempt to explain the science of global warming to a science-disliking nation.
Now our new Senator, Mark Kirk, has found a new way to achieve the same basic goal:
Another Republican blasted from both sides of the spectrum for his record on emissions, Sen. Mark Kirk of Illinois, said he is "not terribly concerned" about taking heat from green groups for his criticism of EPA action on carbon emissions.
"The consensus behind the climate change bill collapsed and then further deteriorated with the personal and political collapse of Vice President [Al] Gore," Kirk said in a brief interview last week.
The thought goes something like this. Al Gore's (personal characteristic) makes me doubt the scientific consensus behind global warming, because who would believe something that a (personal characteristic of Al Gore) believes.
Then, FWIW, there's this funny item.