Letters requesting cooperation from house republicans. joining me now is nbc s alley rafta on capitol hill, and jake sherman, msnbc news contributor. do we have any idea who might be sitting for these public hearings? yeah, katy, well chairman bennie thompson was chatty with the capitol hill press corps, and as you mentioned, there will be eight public hearings, some during primetime and some not. he said specifically it would include exhibits, staff testimony and outside witnesses. the panel is hoping to be able to include more information from that staff category in the form of testimony from several gop lawmakers in the house and the senate that the panel believes has more information that could help them really fill in the missing puzzle pieces of this