Big Clinton backers--Strickland, Rendell, Nutter appear with Obama in swing states Ohio and Pennsylvania on Friday.

WASHINGTON–Here’s the unity picture developing for Friday. Presumptive Democratic nominee Sen. Barack Obama (D-Ill.) stumps in the swing states of Ohio and Pennsylvania with arden supporters of Sen. Hillary Rodham Clinton (D-N.Y.), who were key to her primary victories.

The Obamas hold a town hall session in Columbus with Ohio Gov. Ted Strickland, who helped engineer Clinton’s victory there. The senator headlines a fund-raiser in Philadelphia with Philadephia andMayor Michael Nutter, Pennsylvania Gov. Ed Rendell–big Clinton boosters.

From Obama spokesman Jen Psaki, author of the eargerly awaited daily briefing memo, “Things you should know”

Barack and Michelle Obama will hold a town hall meeting on retirement security at a Columbus, Ohio senior center tomorrow. They will be joined by a local couple who will discuss the economic challenges facing Americas seniors. Governor Ted Strickland will also participate in the program.

Barack Obama will host a fundraiser in Philadelphia tomorrow evening. Amy Chozick, Wall Street Journal will be the pool reporter. Mayor Michael Nutter, Governor Ed Rendell and Senator Bob Casey will participate in the program at the fundraiser.

Senator Claire McCaskill will speak at the Iowa Hall of Fame Dinner tomorrow evening.