Dirty Political Tricks in Erie?

Hillary Clinton's campaign headquarters in Erie says a college-age worker for Barack Obama represented himself as a Hillary Clinton supporter when he visited the local campaign office. The Clinton campaign identified him as Sam Glenzer of Wisconsin, and said he tried to get information at Clinton's office. The volunteer chairman of the Obama campaign in Erie, said he wasn’t aware of any Obama workers going to the Clinton headquarters, and if he did it, he did it on his own because Obama's campaign does not tolerate such tactics.