record makes him attractive to trump and republicans who are desperate to rein in an agency they say is wasting taxpayer dollars. >> i get no join being one of those states from america's tail pipe. >> reporter: from an all-nighter on the senate floor to protests outside of epa and the union urging its epa members to tell heir senators to vote no, despite the resist attention, a fresh tweet from the agency for the first time in weeks welcoming scott pruitt. i'm rene marsh reporting. >> let's bring in tom lobianco our cnn politics reporter. i want to pick right up on the tail end of these e-mails, tom. on the tail end of this andrew puzder withdrawal from labor and that embarrassment for the administration. is there any concern from senate republicans that these unknowns of these e-mails could offer more embarrassment? why not wait until they have some clarity? what's in these e-mails potentially before confirming it? >> i think that's the answer