Former senior White House adviser David Axelrod maintained Wednesday that he had no idea Hillary Clinton used a private server when she worked at the State Department, a declaration that comes after it was revealed this week that he contacted her at least once in 2009 through one of her personal email accounts.

The former Obama official's comments came Wednesday as MSNBC's Thomas Roberts asked him about the more than 2,000 Clinton emails released this week by the State Department.

A few of the emails show that Axelrod emailed Clinton in 2009 at

"[A]s we watch the document dump of emails that consistently are coming out through this process, in yesterday's big dump of the Hillary Clinton emails, there was one from you to Hillary Clinton's private account," Roberts said. "So you knew she was using a private account when other administration officials were using government accounts? "

Axelrod responded, "Well, everybody — most people in the government had private accounts for private sorts of emails. I was referred to that account when I wanted to send her a note because she had been injured and I wanted to just send her a note telling her I hoped she was feeling better. And I sent it to that account."

"And I've never ever — I've always said that I knew she had that account. What I didn't know was that she used that account exclusively, and I certainly didn't know that she had her own server. Those were things that I just learned with everybody else later on," he added.

An email released this week by the State Department shows that Axelrod had to request an email address at which Clinton could be reached from her chief of staff, Cheryl Mills.

RELATED: FLASHBACK: When David Axelrod said he didn't know anything about Clinton's private server

"Do you think that there's anything that's going to be coming up that could hurt her out of these document emails?" Roberts asked.

"I don't think there was much in this trove of emails that is particularly newsworthy. I think generally, you know, she said at the beginning of this story when it first unfolded that had she had to do it over again, she probably would have done it differently," the former Obama adviser said. "And I think she should have."

"But, you know — and I do think there will be a drip, drip, drip because you have the [Rep. Trey Gowdy, R-S.C.] committee over in Congress, the Benghazi committee and others who are intent on dragging this out for obvious reasons," he added. "Whether anything will come out of it that could be damaging to her in this election, I really don't know, and I kind of doubt it. I think that what we know is what we know."

Roberts noted that Clinton's team has not handed over thousands of other emails to congressional investigators.

"Yes, right, no. I think that — I'm just repeating what she said when she had that press conference at the United Nations and she said, you know, in retrospect it probably would have been better to use the government email address," Axelrod said. "And I certainly agree with that."

"But, you know, I suspect that we know what we're going to know about this. I don't think there are any – you know, I can't say for sure, but I doubt there are any kind of land mines out ahead of this. But it will continue because I think the Republicans will make sure that it continues as part of a campaign to erode her candidacy," he added.