What did "In Catilinam IV" convince the Senate to do?

"In Catilinam IV," delivered by Cicero, played a crucial role in persuading the Senate to take decisive action against Catiline's conspirators. The speech articulated the imminent threat posed by Catiline's planned upheaval and sought to rally the Senate to view the conspiracy not just as a political maneuver but as a direct assault on the Roman state and its citizens.

Cicero's compelling rhetoric emphasized the urgency of the situation, arguing for the execution of the conspirators as a necessary measure to restore order and safeguard the Republic's integrity. By framing the actions of Catiline and his allies as treasonous and dangerous, Cicero effectively created a sense of panic and righteousness among the Senate members, which ultimately led them to agree to execute those involved in the conspiracy. This decision represented a critical moment in Cicero's political career and in the history of the Republic, where a strong stance against perceived threats was necessary for the survival of the political structure.