Oratorical
Part of speech: adjective
Definition: of, or relating to oratory or an orator
Rhetorical
Part of speech: adjective
Definition: Part of or similar to rhetoric, which is the use of language as a means to persuade.
Example sentence: The only tactic liberals have is to try to intimidate people into thinking that the Tea Party is racist. The Tea Party is not a racist movement, period! If it were, why would the straw polls keep showing that the black guy is winning? That's a rhetorical question. Let me state it: The black guy keeps winning.