He had the means with which to impose his will. However, minimum cooperation from the political class was necessary if any solution he devised was to last. To begin with, he thought that he had gained it. But former enemies—such as Marcus Junius Brutus, the dead Cato’s son-in-law and half-nephew, and Caius Cassius Longinus, Praetor for 44 and hungry for a senior military command that Caesar never gave him—were willing to work with him only as long as they believed that he would bring back the Republic.