You are wrong. "Was" is only used when talking about the past. "Were" is used when talking about an imagined condition or something unlikely or impossible. Example: Imagine if he were talking to Obama...

But he is not talking to Obama; therefore it is "were." Its present form is "be." Imagine if I be elected as class president. Won't that be amazing? This could juxtapose an example such as, imagine if I were elected as class president. Wouldn't that be amazing?