0bama is not incompetent. He is doing exactly what he said he was going to do, tearing down the country to match his twisted worldview, which is that the US is not a beacon of good in the world.
To some, it may appear that 0bama is incompetent in his dealings with Iran, or running the VA, or whatever. But none of this should come as a surprise. It is what he campaigned on.
I don't get the piling on Rubio here. Just because we don't like 0bama doesn't mean he hasn't been successful in his goals. I think that is the point Rubio was trying to make.
But for whatever reason, Rubio didn't communicate that well. And Christie kicked the crap out of him.