So what's the deal exactly?

Clearly, Blunt has pushed David Dreier aside for the Majority Leader's job, allowing Dreier, in turn, to edge out Robert Livingston for shortest ever tenure as Republican congressional leader. But the latest reports I can find have Dreier and Blunt, how else to say it, cohabiting in the Majority Leader's office.

Says Reuters: "After a closed-door meeting of House Republicans, lawmakers said Blunt's position was an interim arrangement for the rest of the year and that he would share leadership responsibilities with Rep. David Dreier of California. It was not immediately clear how Blunt, who had had been the third ranking Republican member of the House, would share duties with Dreier, the chairman of the House Rules Committee."

How does that work exactly?