In it, but not of it. TPM DC
"I have been unable to obtain copies of any responses to the Chairman's letters directly from the Chairman," he writes in one such letter. "Without having the benefit of your response, Democratic Committee Members are being prevented from adequately preparing for a hearing the Chairman intends to hold in the coming weeks on this issue. If you have already responded to Chairman Issa's letter, I request that you please send a copy of your response...no later than February 3, 2011."
The public responses generally reflect the incentives of the groups Issa surveyed -- no surprise there. And Issa has said he'll release all the letters publicly, along with a GOP analysis, on February 11. But Cummings' public campaign to circumvent Issa reflects his commitment to check the chairman (to the extent that he can) as the senior Democrat on the committee.
This isn't their first dust up, and we're still less than a month into the new Congress.