Sanders: Klobuchar and Buttigieg ended campaigns under 'great deal of pressure' from 'establishment'

Sen. Bernie SandersBernie SandersOvernight Energy: Treasury creates hub to fight climate change through finance | Sanders, Ocasio-Cortez introduce 'Green New Deal for Public Housing' | Don't attack Zoom for its Bernie Sanders federal tax bill Sanders, Ocasio-Cortez introduce 'Green New Deal for Public Housing' MORE (I-Vt.) said Sunday that the "establishment" placed "a great deal of pressure" on Sen. Amy KlobucharAmy KlobucharJimmy Carter remembers Mondale as 'best vice president in our country's history' Hillicon Valley: Apple approves Parler's return to App Store | White House scales back response to SolarWinds, Microsoft incidents | Pressure mounts on DHS over relationship with Clearview AI Democrats push Twitter, Facebook to remove vaccine 'disinformation dozen' MORE (D-Minn.) and former South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegBiden looks to bolster long-term research and development White House says gas tax won't be part of infrastructure bill The Hill's 12:30 Report: Biden meets with bipartisan lawmakers for infrastructure negotiations MORE to exit the presidential race and endorse former Vice President Joe BidenJoe BidenObama, Clinton reflect on Mondale's legacy Biden, Harris commend Mondale in paving the way for female VP Mondale in last message to staff: 'Joe in the White House certainly helps' MORE.

“The establishment put a great deal of pressure on Pete Buttigieg, on Amy Klobuchar, who ran really aggressive campaigns. Well, I know both of them. They work really, really hard. But suddenly, right before Super Tuesday, they announced their withdrawal,” Sanders said on NBC’s “Meet the Press.”

“If they had not withdrawn from the race before Super Tuesday, which was kind of a surprise to a lot of people, I suspect we would have won in Minnesota, we would have won in Maine, we would have won in Massachusetts. The turnout may have been a little bit different,” he added.

Sanders also addressed Sen. Elizabeth WarrenElizabeth WarrenWorld passes 3 million coronavirus deaths Poll: 56 percent say wealth tax is part of solution to inequality Democratic senators call on Biden to support waiving vaccine patents MORE (D-Mass.) declining to make an endorsement after withdrawing from the race, with NBC’s Chuck ToddCharles (Chuck) David ToddBoehner to NBC's Chuck Todd: 'You're a s---' for question about seeking office again Whitmer: State won't close down again following GOP lawsuits Boehner: 'America First Caucus is one of the nuttiest things I've ever seen' MORE asking him whether he could win the presidential nomination without her support.

“I would certainly love to have the support of Sen. Warren, but yes, of course we can. We can win this because we are going to win the support of working people all over this country who agree with our agenda that, among many other things, the time is long overdue to recognize that health care is a human right in this country, not a privilege. We must pass a 'Medicare for All' single-payer program,” Sanders said.

Sanders also addressed online attacks from his supporters, which Warren described in a recent interview. Sanders has repeatedly condemned such attacks.

“I will not deny for a second that we have some people who claim to be supporters, although I have a hard time understanding why they think they can support me and make vicious personal attacks against people. That's not what our campaign is about,” Sanders said.

The Vermont senator also addressed online harassment of black women affiliated with his campaign. 

"Talk to some of the African American women who are in my campaign about the racist and sexist crap that they have got to deal with," he told Todd. "So it's an ugly world out there."

Hilary Rosen, a surrogate for former Vice President Joe Biden, apologized last week after telling Sanders campaign co-chairwoman Nina Turner she did not have the "standing" to quote Martin Luther King Jr., and MSNBC contributor Jason Johnson was widely criticized in February for calling Sanders’s campaign staff the “island of misfit black girls.”