Cannon wielded the office of Speaker with unprecedented power. At the time of Cannon's election, the Speaker of the House concurrently held the chair of the Rules Committee, which determined under what rules and restrictions bills could be debated, amended, and voted on, and, in some cases, whether they would be allowed on the floor at all. As such, Cannon effectively controlled every aspect of the House's agenda: bills reached the floor of the house only if Cannon approved of them, and then in whatever form he determined – with Cannon himself deciding whether and to what extent the measures could be debated and amended.