This is gossip at this point, but rumor has it that Larry Sinclair, the increasingly throbbing thorn in Sen. Barack Obama’s side, has retained a high profile lawyer to help him fight his defamation suit against the senator and his adviser, David Axelrod. We’ve been told that Sinclair’s lawyer may be Joe Tacopina, who represents Joran Van Der Sloot, the individual accused in the Natalie Holloway murder case. But that is speculation at this point. Stay tuned. In the mean time, Sinclair has supposedly arrived in NYC in advance of taking a polygraph and is expected to hold a press conference in the coming days.