Crowds protest outside Warwick hotel ahead of Ahmadinejad’s arrival in New York

Dozens of protesters marched outside the posh Warwick hotel yesterday before the arrival of Mahmoud Ahmadinejad — with one prancing around in a gigantic paper-mache head mocking the Iranian dictator. “Keep Ahmadinejad out of New York!” some chanted, while others held signs outside the Midtown hotel. The Holocaust-denying president — who claims…