03/18/2010 05:12 am ET Updated May 25, 2011

Rudy Giuliani Stumps For Bloomberg, Raises Fears Of Crime

Raising the specter of a return to higher crime and greater anxiety, former Mayor Rudolph W. Giuliani warned on Sunday that New York could become a more dangerous city if Mayor Michael R. Bloomberg is not re-elected in November.

Mr. Giuliani did not mention Mr. Bloomberg's Democratic challenger, William C. Thompson Jr., by name. But during the first of two campaign events alongside Mr. Bloomberg, he said that not long ago many parts of the city were gripped by "the fear of going out at night and walking the streets."