We're expecting House Minority Leader John Boehner (OH) to arrive at the Grand Hyatt DC in a few hours.

Boehner will work out of a command center in the hotel, along with his senior staff, where he'll monitor the results and talk with NRCC Chairman Pete Sessions (R-TX).

A senior GOP source tells me that they are "taking nothing for granted" and that Boehner "is not expected to address the results-watch gathering this evening until we have a good handle on the results."

Also, my observation from inside the room...there is no festive feel here. No balloons. A very small stage. The GOP is deliberately trying to downplay this as any sort of celebration.