A unity rally to show support for the presidential bid of Sen. Barack Obama (D-Ill.) turned ugly Saturday.

When the question of why some local leaders didn?t show up was posed, a public argument broke out between Assemblywoman Yvette Clark and state Sen. Bill Perkins. Clark wouldn?t say if there was ill will between the two after the disagreement.

?We intend to work together to make sure we deliver for Barack Obama ...so I really can't speak to Mr. Perkins,? said Clark.