Breaking: The Tiger Beat on the Potomac looks like its imploding from the top.

In what can be described only as a cataclysm in Beltway media, CEO Jim VandeHei is leaving Politico, the eight-year-old politics website that shook up Washington journalism, according to sources and reports by Huffington Post and CNNMoney.

And in what can be described only as a mega-cataclysm, Politico Chief White House correspondent Mike Allen is joining VandeHei in rushing toward the exits of Politico’s Rosslyn headquarters. Allen writes the daily franchise newsletter “Politico Playbook.” A bearer of occasional scoops, Allen is the driver of very frequent revenue. Weekly sponsorships for “Playbook” run in the $50,000 to $60,000 range this year, depending on the news cycle. And that’s not even rolling in the big money that comes from “Politico Playbook” conferences/interviews anchored by Allen. His work alone — complete with ethical issues — subsidized a platoon of Politico reporters.