After months of speculation about whether or not he'll take on Luke Ravenstahl next spring in the Pittsburgh mayor's race, City Councilor Bill Peduto made a significant announcement this morning on Facebook and Twitter:

Website PoliticsPa also had an item on an email that County Executive Rich Fitzgerald sent to supporters this morning saying that he was endorsing Peduto and had already made a maximum campaign donation.

According to PoliticsPa: “Today, Bill Peduto filed the paperwork necessary to make him eligible to run for Mayor of Pittsburgh,” Fitzgerald wrote in an email to supporters. “Although he has not officially announced that he will run, I am honored to be the first to donate the maximum amount allowed by law to his campaign.”

We will have more on this story as it becomes available.