nbc news has confirmed former clinton staffer bryan pagano who help set up her private account was granted immunity to talk to the fbi selling while there may have been routine phishing attempts there is no evidence that the e-mails were hacked cnbc's john harwood. >> i'm happy now that everybody has been cooperating and giving information. >> reporter: would you concede that you and the people who worked for you at state department were sloppy in the way you handled information? >> no, no. >> reporter: today donald trump saying the e-mails are bernie sanders' only hope. >> the only thing that something happens to hillary with regard to the e-mails. >> reporter: meanwhile, sanders kept the focus on their trade differences. >> hillary clinton was on the other side of many of these trade agreements supporting nafta. >> reporter: clinton dismissed the criticism and saved her sharpest attacks for last night's gop debate. >> the economy which should be at the top of any list that anybody running for president has was basically an after thought. >> reporter: clinton and sanders will face off at

nbc news has confirmed bryan pagano who help set up her private account was granted immunity to talk to the fbi selling while there may have been routine phishing attempts there is no evidence that the e-mails were hacked cnbc's john harwood. >> i'm happy now that everybody has been cooperating and giving information. >> reporter: would you concede that you and the people who worked for you at state department were sloppy in the way you handled top secret information? >> no, no. >> reporter: today donald trump saying the e-mails are bernie sanders' only hope. >> the only thing that can save him if is something happens to hillary with regard to the e-mails. >> reporter: meanwhile, sanders kept the focus on their trade differences. >> hillary clinton was on the other side of many of these trade agreements supporting nafta. >> reporter: clinton dismissed the criticism and saved her sharpest attacks for last night's gop debate. >> the economy which should be at the top