A spokesman for Democratic presidential candidate Hillary ClintonHillary Diane Rodham ClintonState cites 38 people for violations in Clinton email review Trump campaign to hold rallies in Mississippi, Kentucky Biden struggles to reverse fall MORE on Wednesday called for Bernie SandersBernie SandersSanders seeks spark from Ocasio-Cortez at Queens rally On The Money: Supreme Court takes up challenge to CFPB | Warren's surge brings scrutiny to wealth tax | Senators eye curbs on Trump emergency powers Biden seeks to fundraise off fact he's running out of money MORE to adopt a "civil tone" and avoid attacks that would "jeopardize" efforts to unite Democrats.

The morning after Clinton won the New York primary, expanding her delegate lead over Sanders, spokesman Brian Fallon said that while Sanders "has every right to continue in this until the finish," he should steer clear of divisive rhetoric.

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"I do think the question is, can we conduct the remaining part of the campaign with a civil tone, with an issues focus so that we're not doing anything that would jeopardize our ability to unite the party at the end of this process?" Fallon told CNN's "New Day."

Fallon called Clinton's lead "essentially insurmountable" and said that "when the time comes," her campaign would expect Sanders to endorse Clinton and campaign on her behalf. He noted that Clinton did exactly that in 2008 when she realized she could not beat then-Sen. Barack ObamaBarack Hussein ObamaClinton suggests Russia grooming Gabbard to run as third-party 2020 candidate The Hill's 12:30 Report: Washington mourns loss of Elijah Cummings Obama: Cummings showed us 'the importance of checks and balances' MORE (D-Ill.).

Sanders has repeatedly blasted Clinton's ties to Wall Street and openly mocked her big-dollar speeches to banks, saying sarcastically during a Tuesday rally that her speeches must have been "so extraordinary, so enlightening, so globally transforming, written in Shakespearian prose."

"I think you've seen in the course of this New York primary campaign that these suggestions and insinuations that she's somehow beholden to the financial industry just didn't set well with these voters, and I think they rejected those attacks and insinuations last night," Fallon said Wednesday.