I’d understood it to be a reference to the chimp who was killed after ripping the face off a woman. Relating the chimp to Obama (rather than who Obama hired to write the bill) doesn’t make sense unless a police officer recently killed Obama.

Travis sits in the corner of his playroom at the home of Sandy and Jerome Herold in Connecticut.
For years, Travis had been a local celebrity in his hometown. He featured often on TV adverts, and would pose for photographs performing his favourite tricks: tucking into a filet mignon, dressing himself or using a computer.
But yesterday the pet chimpanzee went berserk, attacking a friend of his owner's and causing terrible facial injuries before turning on a police officer who shot him in self-defence.