Former Secretary of State Madeleine Albright attends the third day of the Clinton Global Initiative's 10th Annual Meeting at the Sheraton New York Hotel & Towers on Sept. 23, 2014 in New York City.
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Conan O’Brien just got served … by Madeleine Albright

Updated

When Conan O’Brien took to Twitter on Thursday night to announce his Halloween costume, he didn’t realize he’d be setting off a social media war for the ages.

Hopefully, as O’Brien implies, this feud won’t flame out any time soon. Can he outwit former Secretary of State Madeleine Albright?

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Conan O'Brien just got served ... by Madeleine Albright

Updated