Former President Clinton says that being Hillary ClintonHillary Rodham ClintonAssange meets U.S. congressman, vows to prove Russia did not leak him documents High-ranking FBI official leaves Russia probe OPINION | Steve Bannon is Trump's indispensable man — don't sacrifice him to the critics MORE's husband puts limits on what he can say on the campaign trail.

"The hotter this election gets, the more I wish I were just a former president and just for a few months, not the spouse of the next one," he said when introducing his wife on the campaign trail in New Hampshire on Monday. "Because, you know, I have to be careful what I say."

"Tonight my job is to introduce Hillary," he added. "Sometimes when I'm on a stage like this, I wish we weren't married. Then I could say what I really think."

Bill ClintonBill ClintonCongress needs to assert the war power against a dangerous president House Dems push to censure Trump over Charlottesville response Too many Americans with insurance are being denied coverage MORE has gone on the attack recently against Hillary Clinton's rival, Sen. Bernie SandersBernard (Bernie) SandersThe media couldn't be more blatant in distorting Trump's words on Charlottesville Road to renewable energy is filled with potholes of ‘magic thinking’ Bernie Sanders: Trump’s Charlottesville comments ‘embarrassing’ MORE (I-Vt.), raising concerns among Democrats who think the ex-commander in chief is being too aggressive.

On Sunday, he accused Sanders supporters of sexist attacks against Hillary Clinton. He also criticized the Vermont Independent's positions on healthcare and campaign finance.

“Is it good for America?” Clinton asked of Sanders’s healthcare model at an address two days before the New Hampshire primary. “I don’t think so. Is it good for New Hampshire? I don’t think so."