The middle republic's consensus-based senate-led culture of decision-making was killed by Sulla's dictatorship: both the people endowed with that culture had been purged and the very rationale for that culture as well. At a broad level, Sulla's dictatorial reforms attempted to concentrate political power into the Senate and the aristocratic assemblies, whilst trying to reduce the obstructive and legislative powers of the tribune and Plebeian council. To this end, he required that all bills presented to the Assemblies first be approved by the Senate, restricted the tribunician veto to only matters of individual requests for clemency, and required that men elected tribune would be barred from all other magistracies. Beyond stripping the tribunate of its powers, the last provision was intended to prevent ambitious youth from seeking the office by making it a dead end.