 Complete the following phrase:  He was censor in 332 BC and magister equitum in 327 BC, when Marcus Claudius Marcellus was appointed to hold the comitia. In 321 BC, he was consul a second time with Titus Veturius Calvinus, and with him marched against the Samnites and their commander Gaius Pontius in the Second Samnite War. Postumius was defeated at the 