Iraq: Sunnis being kept out of Iraqi government?

Debka Main page:

DEBKAfile adds: Washington is bent on stalling Shiite-Kurdish effort to cut Sunnis out of Iraqi national political process.

This doesn't seem likely in my opinion. Much of the recent stalling was apparently due to the Sunnis having trouble picking a speaker. I suspect that the current Shi'ite and Kurdish leadership realizes the importance of bringing Sunnis in.