With party conventions approaching and the presidential campaign in Pennsylvania swinging into full gear, Pennsylvania's elected officials are getting into the action, stumping for U.S. Sen. Barack Obama (D-Ill.) in a variety of locales, but usually keeping their campaign work limited to economic issues.

It seemed to start in earnest Sunday, when U.S. Rep. Chaka Fattah (D-Philadelphia) stumped for Obama on the economy in front of Philadelphia City Hall. Obama endorsed Fattah in his unsuccessful mayoral primary bid last spring, and Fattah was one of the few Pennsylvania politicians who supported Obama during his primary battle against U.S. Sen. Hillary Clinton (D-N.Y.) in April.

A day later former U.S. Sen. Harris Wofford criticized Obama's opponent, U.S. Sen. John McCain (R-Ariz.), for running what he said had become a "negative, nasty and dishonorable campaign," The Morning Call reports.

"... [T]he John McCain I am seeing in this campaign is not the John McCain I knew," Wofford told reporters during a campaign conference call.

The Pennsylvania surrogates continue their work today, with U.S. Rep. Allyson Schwartz scheduled to take part in a conference call with reporters. Joined by Allegheny County Councilman Jim Burn, Schwartz will discuss McCain's energy plan, "or lack thereof," the campaign said today.

PolitickerPA.com will continue to closely cover which local politicians are stumping for which candidates and what they're saying.