Los Angeles (CNN) Bernie Sanders told The Wall Street Journal in an article published Wednesday that there are "valid questions" about Hillary Clinton's emails and that the investigation should "proceed unimpeded."

Clinton looks at a phone with Assistant Secretary of State for European Affairs Philip Gordon as they wait in a Munich, Germany, conference room for a bilateral meeting with the Ukrainian President in February 2012.

Clinton looks at a phone with Assistant Secretary of State for European Affairs Philip Gordon as they wait in a Munich, Germany, conference room for a bilateral meeting with the Ukrainian President in February 2012.

Clinton speaks on a phone in the lobby of a Honolulu hotel before briefing reporters on the Haiti earthquake in January 2010.

Clinton speaks on a phone in the lobby of a Honolulu hotel before briefing reporters on the Haiti earthquake in January 2010.

Clinton hands off her phone after arriving to meet with Dutch Foreign Minister Uri Rosenthal in The Hague, Netherlands, in December 2011.

Clinton hands off her phone after arriving to meet with Dutch Foreign Minister Uri Rosenthal in The Hague, Netherlands, in December 2011.

Clinton types on her phone during a visit to Brasilia, Brazil, in April 2012.

Clinton types on her phone during a visit to Brasilia, Brazil, in April 2012.

Clinton looks at her phone after attending a Russia-U.S. meeting in Hanoi, Vietnam, in July 2010.

Clinton looks at her phone after attending a Russia-U.S. meeting in Hanoi, Vietnam, in July 2010.

Clinton checks her phone after addressing the U.N. Security Council in March 2012.

Clinton checks her phone after addressing the U.N. Security Council in March 2012.

Hillary Clinton, while U.S. secretary of state, checks her Blackberry on a military plane in October 2011. Clinton said she used a private email account for her official work at the State Department and that she did so out of convenience. But she admitted in retrospect "it would have been better" to use multiple emails.

The comment was cast as a break from what Sanders said during the first Democratic debate, when he bellowed that "the American people are sick and tired of hearing about your damn emails," a line that was seen as a gift to Clinton because it dismissed what could be her most nagging problem. The Wall Street Journal comment was also seen as a sign that the Democratic candidate was taking the gloves off against the front-runner and preparing to assail her on emails.

In actuality, though, it is consistent with what he has said in the past about Clinton's emails.

Sanders regularly downplays the issue as one that doesn't rise to the level of raising wages , climate change and education reform , but doesn't dismiss the email investigation entirely.

Sanders was asked in an interview with CNN immediately after the debate what motivated him to use the now-famous "damn emails" line.

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"Well, what motivated that is that I think the American people want substantive discussions on substantive issues," Sanders said. "There is a process in place for the email situation that Hillary Clinton is dealing with. Let it play itself out. As a nation, let us start focusing on why it is that so few have so much and so many have so little."

Sanders used a similar line the Sunday after the debate, telling ABC that he doesn't regret saying Americans don't care about Clinton's "damn emails" because he thinks he is right.

But that wasn't all Sanders said.

After listing issues that are more important to American families -- including college affordability campaign finance reform and climate change -- Sanders said "All of those issues are more important than Hillary Clinton's emails, of which there is already a process underway to determine what happens."

And before the debate, Sanders used the same line to discuss Clinton's email controversy.

"I think that's an issue that we've got to take a hard look at, and I think what's going on now is, as I think Secretary Clinton now realizes, is not a good practice," he told MSNBC's Andrea Mitchell in August

"Do you think that she jeopardized national security?" Mitchell asked.

"Well, there is a process that is going on now," Sanders said. "We will learn more about it."

Tad Devine, Sanders' top strategist, said there is "absolutely" no plan for Sanders to start going after Clinton on emails and that his comments to the Wall Street Journal were not new.

"Absolutely not. We are not. We had enough of your damn emails. That still stands. Nothing has changed," Devine said, arguing that Republicans are using emails as a political football and that they "made fools of themselves" at October's hearing on Benghazi.

Sanders, in the interview with the Wall Street Journal, did question Clinton's consistency on issues, saying that her opposition to a Pacific trade deal that she once supported "does speak to the character of a person."

"Is there a new phase that we are doing? No," Devine said. "We are not interested in it."

Clinton's campaign doesn't exactly see it that way. On Thursday, Josh Schwerin, Clinton's campaign spokesman, issued a statement that took issue that Sanders' comments to The Wall Street Journal.

"This has and will remain a campaign about issues for Hillary Clinton, and that's what she'll continue to talk about on the trail," Schwerin said. "It's disappointing Senator Sanders and his campaign strategists have chosen to change direction and engage in the type of personal attacks that they previously said he wouldn't do."

Sanders' strategists, however, don't feel that they have.