The Democratic presidential candidate commented that it's easier for status quo forces to maintain a broken system than to fix it.
"We urge you to fully commit to eliminating all patient cost-sharing for COVID-19," the groups wrote in an open letter.
Progressive lawmakers, including presidential candidate Bernie Sanders, have argued that the crisis shows a universal health care system is needed.
"What we're not talking about right now, Seth, is that if you're making 14 bucks an hour, 12 bucks an hour and that check stops coming in, which is the case, how are you going to feed your family? How are you going to pay the rent?" Bernie Sanders said during a Monday appearance.
A poll by Harvard and Harris conducted from March 24 to 26 shows Biden beating Trump by 10 points, 55 percent to 45 percent.
Nearly twice as many supporters of the president said they are "very enthusiastic" about their candidate, compared to those backing the former vice president.
Democratic presidential candidates Joe Biden and Bernie Sanders joined state lawmakers in New York and California in calls to freeze and forgive rent payments, as millions of Americans struggle to make ends meet under coronavirus lockdown.
Most every Democrat and progressive will support Biden, regardless of who is selected #2. But the real Democratic imperative is to win back the large number of blue collar voters who abandoned Hillary in 2016.
Although the New York governor is not running for the Democratic nomination, more people are putting their odds on him over the senator from Vermont.
The Vermont senator mockingly said the universe was collapsing because American workers would get an extra $600 a week on unemployment payments.
Bernie Sanders' campaign said earlier this week that the senator would take on the former vice president again if a debate is held in April.
A 63 percent majority of Americans say they don't view the president as religious, but a 55 percent majority of U.S. adults say Joe Biden likely holds to his Catholic faith.
Both Democratic contenders have strongly criticized Trump's handling of the government response to the coronavirus pandemic.
The poll, which was conducted The Economist and YouGov, surveyed 1,500 U.S. adults from March 15 to March 17.
What happened, in the end, was the senator's overemphasis on his policies and a failure to preach the underlying moral values that inspired them.
"We need to provide our families with support right now. We have no time to waste," Congressman Joe Kennedy III tweeted on Wednesday.
Early Wednesday morning, a Sanders spokesman said they would "assess the campaign" after Biden swept the primary elections.
Early voter turnout numbers were up in all three states that chose to hold primaries despite concerns caused by the growing COVID-19 pandemic.
Sanders dominated the early voting states, but he fell behind Biden after nearly all the other moderate candidates dropped out of the race before Super Tuesday.
Sanders said the money would give Americans "the assistance they need to pay their bills and take care of their families."
In recent days, the former vice president has appeared to make overtures to the progressive wing of the Democratic Party.
Andrew Yang received the second highest level of support from respondents.
Sanders savaged Biden's decades-long Senate voting record and demonstrated strength in his rhetoric on healthcare, climate change and foreign policy.
Biden vowed to pick a woman as his vice presidential running mate, while Sanders said he would want a progressive woman on the ticket.
"I am saying that you have been on the floor of the Senate time and time again, touting the need to cut Social Security, Medicare and veterans' programs," Sanders said.
Joe Biden and Bernie Sanders both accidentally called the coronavirus a virus from the past—SARS and ebola, respectively—while answering questions on the COVID-19 crisis during Sunday night's Democratic debate.
"He is undermining the doctors and scientists who are trying to help the American people," the Vermont senator said during the Democratic debate.
The debate will kick off Sunday at 8 p.m. ET and will be hosted by CNN.