Liberal Patriotism

So Joe Biden contends that a person's patriotism is measured by their desire to pay taxes... You know what Joe? Charlie Rangel wishes you'd shut your mouth. Obama on the other hand seems to like talking about how many homes McCain owns, but inquiring minds want to know how many homes Charlie owes taxes on... Considering the fact that Rangel chairs the committee that writes the tax law, how hollow is his "I didn't know I owed it" defense for his tax evasion?