Bill Maher came back from his summer vacation predictably attacking conservatives while defending Barack Obama.

During his New Rules segment, the HBO Real Time host said with pictures of Sen. Mitch McConnell (R-Ky.) and Syrian President Bashar al-Assad on screen, “Scientists must study the correlation between not having a chin and being an a—hole” (video follows with commentary):

What’s fascinating is I doubt Maher would win a debate with either Assad or McConnell on any subject except marijuana.