I've come up with 2 possible interpretations.
1) Michael (aka SAINT Michael, as he is known by fans), says the Obama-centric phrase "Yes we can" when presented with a challenge. Connie (who, note previous strips, wants more children) and Lawrence represent the Republicans that obviously cannot meet the challenge. Obama reigns supreme.
2) Michael (again, aka Saint Michael) acts like a jackass in order to get what he wants and tramples over everyone else (represented here by a gay child and his single mom), representing the warmongering of Republicans. Since this strip was published on the anniversary of 9/11, i think this is more likely, although I would not doubt that Lynn would put both a bitter and a sweet message in a single strip.
