“Liar” is certainly accurate.
“Traitor” is not, as Barry has never actually levied war against the United States, nor has he given aid and comfort to its enemies. The same for “terrorist,” as Barry never planted any bombs himself, even though he consorts openly with someone who did.
Mike Nifong is not a terrorist or traitor either, so why not elect him instead of Barry? He needs the job more than Barry does, noting the lawsuits that the Duke Lacrosse players have filed against him.