Sen. Bob Casey (D-PA) endorses Barack Obama; a flashback

Senator Bob Casey, Democrat from Pennsylvania, has endorsed Barack Obama and will go on tour with him.

Per an Obama flack:

"There are few stronger advocates for working families in Pennsylvania than Sen. Casey."

Yes indeed, and it doesn't matter whether they're U.S. citizens or citizens of foreign countries who are here illegally, Senator Casey is on their side. It's time for a flashback to a year and a half ago, when he was running against Rick Santorum: