Cicero informed the citizens of Rome that Catiline had left the city not in exile, as Catiline had said, but to join with his illegal army. He described the conspirators as rich men who were in debt, men eager for power and wealth, Sulla's veterans, ruined men who hoped for any change, criminals, profligates and other men of Catiline's ilk. He assured the people of Rome that they had nothing to fear because he, as consul, and the gods would protect the state. This speech was delivered with the intention of convincing the lower class, or common man, that Catiline would not represent their interests and they should not support him.
Meanwhile, Catiline joined up with Gaius Manlius, commander of the rebel force. When the Senate was informed of the developments, they declared the two of them public enemies. Antonius Hybrida (Cicero's fellow consul), with troops loyal to Rome, followed Catiline while Cicero remained at home to guard the city.