Hillary Clinton's campaign is going after James Comey personally for new email revelation story

Hillary Clinton's campaign is vigorously pushing back against the FBI's announcement that it is still examining whether the Democratic presidential nominee violated laws in her use of a private email server while serving as secretary of state.

Following Friday's announcement that the FBI discovered new emails on former Rep. Anthony Weiner's laptop between his estranged wife Huma Abedin and Clinton's private server, top Clinton campaign officials fanned out over cable news on Sunday's political talk shows to criticize FBI Director James Comey's decision to publicly announce the continuation of Clinton's email investigation.

In an appearance on Fox News Sunday, Clinton campaign manager Robby Mook said he was "very surprised" by Comey's letter the Congress informing lawmakers of the discovering of potential new emails. Mook said he found the letter "very strange," highlighting reports that the FBI is still awaiting a warrant to review the emails, and argued that reporters were reading too much significance into Comey's ambiguous letter.

"Director Comey has put out a letter. It has three paragraphs. It says nothing about Huma Abedin. It says nothing about who these emails are to or from, it just says that he has information that may be significant, we don't even know it if is," Mook said.

Other aides argued that the announcement broke with the Department of Justice's normal guidelines for informing the public about ongoing investigations.

On CNN, Clinton campaign chair John Podesta reiterated his concern that Comey was unnecessarily influencing the presidential election without giving voters enough information about the current status of the investigation.

"To throw this in the middle of the campaign 11 days out seemed to break with precedent and be inappropriate at this stage," Podesta said.

He added: "He might've taken the first step of actually having looked at them before he did this in the middle of a presidential campaign so close to voting."

Clinton's running mate Sen. Tim Kaine similarly cited reports that maintained Comey and his team didn't know the contents of the emails before informing Congress, and that he overstepped his bounds by making an announcement before he provided clarifying information. 

"If he hasn't seen the emails, they need to make that plain and release the circumstances of those once they have done the analysis," Kaine said on ABC. "That's what Hillary said immediately when she spoke to the press on Friday. She said you can't break both protocols and leave it up in the air with a question mark. You owe people the complete information."

The campaign released a video on social media later on Sunday detailing how initial reporting of the story did not include key information, saying that the emails could be duplicates of those the FBI has already revealed. Narrated by press secretary Brian Fallon, the video called Comey's letter "light on facts" and "heavy on innuendo," and suggested that it was further ammunition for Republicans to use against the Democratic presidential nominee.

"The more information that has come out, the more overblown this all seems. And the more concern it has created about Director Comey's actions," press secretary Brian Fallon said.

Later in the video, he added: "Republicans have been trying to use Hillary Clinton's emails to bring her down since the very beginning of this campaign."