Pelosi rules through intimidation.
All of the other Democratic Representatives are watching her, waiting for the loonies to get bug-splatted by the windshield.
If Pelosi does not smack them down then she will not be able to lead. There is much pent up resentment.
A few questions come to mind.
How much longer will the rank-and-file Democrats in the House give Nancy to smack them before running off the reservation?
How will she choose to do it? Will the guys in the back-room who advise Orbital-Crazy and others start having accidents and ruined credit ratings or will it be more overt? That is, more of an object lesson.