Imagine that a Republican state attorney general had been forced to resign after being convicted of perjury and obstruction of justice. Now imagine how the story would have been played on MSNBC. Fair to assume that the word “Republican” would have featured in the story’s first sentence?

But in a stand-alone segment on today’s Hardball on the forced resignation of Kathleen Kane, the Pennsylvania AG who was convicted on nine charges, host Chris Matthews failed to ever mention, and the screen graphics never revealed, that Kane is a Democrat. Kane had illegally leaked secret grand jury documents to harm a rival prosecutor, then lied about it under oath.

This kind of blatant double standard is a disgrace. Shame on Chris Matthews not just for the bias, but for his poor journalism in depriving viewers of relevant information.

CHRIS MATTHEWS: Pennsylvania Attorney General Kathleen Kane resigned today after being convicted on nine criminal charges. Prosecutors argued that Kane leaked information about a rival prosecutor and then lied about it to a grand jury. Once, and not too long ago, a rising star in Pennsylvania politics and the first woman ever elected to her position, Kane had already lost her legal license but had refused to step down until today. Kane could face prison time. She’ll be sentenced within 90 days. What a downfall. We’ll be right back.