Only democrats are allowed to have ever flown a confederate flag. Clinton flew one in his governors office the entire time he was there.
There's a good reason for that, Democrats created the Confederate flag, just as Democrats created the Confederacy, the Klu Klux Klan, and used the Confederate flag to first intimidate blacks into not voting at all and then when forced to allow them to vote by republicans, democrats did a 180 and used the confederate flag as a symbol of racism to get the black vote in the south.
My advise to Allen is that everytime the Confederate flag issue comes up, he should point out how it is a symbol the democrats used during their high of power in the south to control who voted how in the south.