PHILADELPHIA (CBS) – A leading Philadelphia politician has announced, through a statement, that he will not mount a challenge against Mayor Nutter in the May Democratic primary.

State Senator Anthony Williams had, for weeks, been considering whether to take on the formidable task of battling the incumbent mayor, Michael Nutter, in the May 17th primary. Williams has been a nominal Nutter ally and when considering a run, admitted that he was vacillating on an earlier promise to support Nutter for re-election.

READ MORE: Gas Prices Up In New Jersey, Around Nation Amid Refinery Outages

Even with all of the political talk, the two were still talking. “My relationship with him continues. Hopefully my friendship with him will continue, regardless of what I decide,” Williams said before his decision. “But, in the context of whether politicians change their mind, I don’t think there’s anything radical or revolutionary with regard to that.”

READ MORE: 'The United States vs. Billie Holiday' Goes Deeper Into Background Of Classic 'Lady Sings The Blues'

Mr. Williams claims he only considered a challenge to Nutter only because others approached him. Fundraising was a key factor. The Nutter campaign has more than $1.5 million in the bank.

MORE NEWS: Fire Crews Rush To Battle Burning House In Delaware County

Reported by Mike Dunn, KYW Newsradio