The sentence refers to the 'idiots' who attack other politicians like Obama. The idiots are the ones who call him a muslim, or make false represenations on his views in order to support a joke, or create and distribute racially inappropriate pictures such as appeared on the board recently. The whole sentence is below...

"Unfortunately, there are numerous similar attacks against other politicians, Obama is currently a fav of the idiots with something to say."

The term idiot refers neither to Obamas supporters, or those who oppose him. It refers to those who would rather engage in dirty politics rather than constructive debate or positive dialogue.