The Department of Justice top leadership is joining Vice President Joe Biden in Philadelphia on Tuesday to hold another big press event announcing law enforcement stimulus grants, this time in the presidential battleground state of Pennsylvania.

Last month, the venue was Michigan. Read our previous report here.

Attorney General Eric Holder and Associate Attorney General Tom Perrelli will represent the DOJ at the Philly news conference, where they will appear alongside embattled Democratic Gov. Jon Corzine of New Jersey. Polls show Corzine, who is running for reelection in November, trailing his Republican challenger, former New Jersey U.S. Attorney Chris Christie.

The Associated Press’s Devlin Barrett got the scoop on where the money will go in advance of the official annoucement. Barrett led with the news that New York, Seattle, Pittsburgh and Houston had been left out of the COPS program sweepstakes, in which the federal government picks up salary and benefits for local police for three years.

But we found it equally interesting that places like Mobile, Ala., and Salt Lake City, Utah, are getting COPS funds. Mobile is the home town of the top Republican on the Senate Judiciary Committee, Sen. Jeff Sessions, while another Senate Judiciary Republican, Sen. Orrin Hatch, is from near Salt Lake. Both Sessions and Hatch have announced they will oppose President Obama’s nomination of Sonia Sotomayor to the Supreme Court.

According to The AP, around 1000 localities are getting COPS money to pay for 4,699 officers.

The roughly 1,000 places getting COPS aid also include: Mobile, Ala., Mesa, Ariz., Tulare County, Calif., Monroe County, Fla., the Seminole Tribe of Florida, Baltimore, Providence, R.I., Salt Lake City, Utah, and Huntington, W.Va

Under the COPS program, the federal government pays the officers’ salary and benefits for three years, after which the local government is responsible for the costs.

Also slated to appear at Tuesday’s press conference are Pennsylvania Gov. Ed Rendell, Delaware Gov. Jack Markell, Maryland Gov. Martin O’Malley and Philadelphia Mayor Michael Nutter — Democrats all. The Philadelphia police commissioner, Charles Ramsey, who is a former District of Columbia police chief, will also be there.

The $787 billion stimulus package, known as the  American Reinvestment and Recovery Act, was signed into law in February. It contained $4 billion for the Department of Justice to distribute to local and tribal law enforcement and the COPS program.