What are some of the characteristics of the Ancient Roman Republic, according to professor Cantor?   What also are some of the actions Julius Caesar takes?

How does professor Cantor characterize the Roman Republic, the Plebeians, and the Senators?  What also are some of the actions Julius Caesar takes?

How does professor Cantor characterize the Roman Republic, the Plebeians, and the Senators?  What also are some of the actions Julius Caesar takes?  What, ultimately, is the message of this play, according to professor Cantor?