This is classic cynical politico bullshit. Defend against your most vulnerable side by attacking in that direction.
He talks about the evils wrought by a campaign aristocracy out of touch with Washington. But there are few better example than the son-of-somebody who parlayed his father's position into spots managing campaigns at the national level, consulting for tech firms, bouncing from state to state wherever you could land a sweet spot.
This does NOT look like the resume of someone who got where he is by having a good ear for what American voters want. He has played the insider political game all his life.