The skyrocketing cost of a college education has become a hot issue in the 2020 Democratic primary, as most candidates look to provide some type of relief to students saddled with debt.

Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE’s (I-Vt.) was the first Democrat to put the issue front and center in a presidential primary, proposing in his failed 2016 run to make tuition free for public colleges, a plan that forced Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE to come up with her own initiative.

The cost of college came into focus again this month after billionaire Robert F. Smith stunned the graduating class of Morehouse College by offering to pay off all their debt, at a time when the student loans across the country have climbed to $1.5 trillion.

ADVERTISEMENT

In 2020, almost every candidate has a proposal to make at least some part of public college education free or to reduce the weight of student debt, amid a new push in Congress by some Democrats to tackle the issue through legislation.

But the plans have differences, ranging from two years of free community college floated by more moderate candidates such as former Vice President Joe Biden Joe BidenBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Harris faces pivotal moment with Supreme Court battle MORE, to more ambitious plans to make the entire public university experience free and eliminate all student debt, as proposed by Sen. Elizabeth Warren Elizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (D-Mass.).

The proposals, which can cost up to over a trillion dollars, are already being assailed by Republicans as socialist policies that will balloon the fiscal deficit.

Here’s where 2020 Democrats stand on free tuition and student debt.

Free community college

First proposed by then President Obama in 2015, the idea of providing every American with two free years of community college has become the baseline of a higher-education reform policy in 2019.

Several of the 2020 candidates seen as more moderate have adopted this as their main position on higher education.

Biden, the current front-runner in polls, floated two years of free community college during a campaign stop in New Hampshire earlier this month.

“Twelve years of education is not enough anymore,” Biden said, estimating the cost of his plan at $6 billion a year and saying it would cut “in half the cost of their four-year education.”

Sen. Amy Klobuchar Amy KlobucharSocial media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE (Minn.), who came under fire for saying implementing free college would require a “magic genie,” has suggested some one- or two-year community college programs should be free.

And former Rep. Beto O’Rourke (Texas) said at an April town hall in South Carolina that those who want to attend community college should be able to “go without paying a single dime."

Others supporting free community college include entrepreneur Andrew Yang Andrew YangDoctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls Buttigieg launches his own podcast MORE, former Rep. John Delaney John DelaneyCoronavirus Report: The Hill's Steve Clemons interviews Rep. Rodney Davis Eurasia Group founder Ian Bremmer says Trump right on China but wrong on WHO; CDC issues new guidance for large gatherings The Hill's Coronavirus Report: Kansas City Mayor Quinton Lucas says country needs to rethink what 'policing' means; US cases surpass 2 million with no end to pandemic in sight MORE (Md.), and former Colorado Gov. John Hickenlooper John HickenlooperCook Political Report shifts Colorado Senate race toward Democrat Willie Nelson playing at virtual fundraiser for Hickenlooper Gardner on court vacancy: Country needs to mourn Ginsburg 'before the politics begin' MORE.

Tuition-free college

Sanders’ proposal for free public college in 2016 was well received and was quickly adopted by the more progressive wing of the Democratic party.

He also highlighted support for universal free college in his 2020 campaign announcement.

“It is totally counterproductive for our future that millions of Americans are carrying outrageous levels of student debt while many others cannot afford the high cost of higher education,” Sanders said in a video announcing his presidential run. “That is why we need to make public colleges and universities tuition free and lower student debt.”

His proposal was spelled out with the 2017 College for All Act, which would make public college tuition free for students from families earning $125,000 or less per year and make community college completely free for everyone. The bill has yet to be voted on.

The plan’s cost was estimated at $600 billion by Sanders, who said it would be funded in part by a tax on Wall Street.

Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE (D-Hawaii) co-sponsored the House version for the College for All Act and has highlighted her support for the legislation while campaigning for president.

Debt-free, but not tuition free, college

Another proposal being floated by 2020 Democrats involves targeting the debt students and their families accrue when attending public college.

Much of it is centered around a bill by Sen. Brian Schatz Brian Emanuel SchatzCDC causes new storm by pulling coronavirus guidance Overnight Health Care: CDC pulls revised guidance on coronavirus | Government watchdog finds supply shortages are harming US response | As virus pummels US, Europe sees its own spike Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE (D-Hawaii), the Higher Education Act, which seeks to make college “debt free.” The bill was first introduced in 2018 and re-introduced this year.

Under Schatz’s plan, all costs of college, including tuition, housing, food and transportation, would be covered above a family’s expected contribution.

Expected family contribution is a number calculated by the government estimating how much money a family can put toward college. Everything above that number would be covered under the debt-free plan.

States in Schatz’s program would receive a dollar-for-dollar match from the federal government for the funding they allocate toward state schools. To qualify, schools would have to commit to help students pay for the full cost of college without taking on debt through need-based grants like Pell Grants.

The plan’s cost has been estimated at nearly $100 billion.

Multiple education experts described this proposal to The Hill as more comprehensive than Sanders’s College For All Act.

A debt-free plan “changes the target,” Mark Huelsman, Associate Director of Policy and Research of education think-tank Demos, explained to The Hill.

“It takes the total cost of attendance into account, and says no one will have to take on loans to meet that cost. In some ways it’s more generous than tuition-free.”

Huelsman added that that’s because debt-free plans take into account that tuition is only about 40 percent of what it costs to attend a four-year public university.

Schatz’s bill has the backing of Democratic Sens. Warren, Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (N.J.), Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (N.Y.) and Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (Calif.).

The three senators running in 2020 who backed Schatz’s plan also backed Sanders’. None of their campaigns immediately returned requests for comment on their current stance.

Rep. Tim Ryan Timothy (Tim) RyanNow's the time to make 'Social Emotional Learning' a national priority Mourners gather outside Supreme Court after passing of Ruth Bader Ginsburg Lincoln Project hits Trump for criticizing Goodyear, 'an American company' MORE (D-Ohio) co-sponsored the 2018 version of the bill in the House. Ryan’s campaign did not reply to a request for comment from The Hill to see if he still supported the legislation as a candidate.

Meanwhile, South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegThe Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice Hillicon Valley: FBI, DHS warn that foreign hackers will likely spread disinformation around election results | Social media platforms put muscle into National Voter Registration Day | Trump to meet with Republican state officials on tech liability shield MORE has proposed debt-free college through state-federal partnerships and an expansion of Pell Grants to cover non-tuition fees.

Rep. Eric Swalwell Eric Michael SwalwellSwalwell calls for creation of presidential crimes commission to investigate Trump when he leaves office 'This already exists': Democrats seize on potential Trump executive order on preexisting conditions Swalwell: Barr has taken Michael Cohen's job as Trump's fixer MORE (D-Calif.) has voiced support for creating a path to debt-free public college for students who do work study and commit to serving their communities after college.

Rep. Seth Moulton Seth MoultonThe Hill's Morning Report - Presented by Facebook - Markey defeats Kennedy; Trump lauds America's enforcers in Wisconsin Moulton fends off primary challenges in Massachusetts Portland: The Pentagon should step up or pipe down MORE (D-Mass.) campaign told The Hill they support debt-free college as a goal, “but not the only goal.”

Universal debt and tuition free college

Two 2020 Democratic candidates have unveiled more sweeping proposals to tackle the skyrocketing cost of a college education.

Warren rolled out a proposal in April to eliminate tuition and other fees at all public colleges and universities while also cancelling nearly all student loan debt.

The "entire cost" of the higher-education reform proposal would be covered by Warren’s proposed 2 percent annual tax on families with $50 million or more, which she calls the "ultra-millionaire tax."

Her proposal also includes dollar-for-dollar cost matching between the federal government and states for tuition and fees.

“Warren has reset the debate among candidates on cancelling student debt the way Bernie Sanders did in 2015/2016,” Huelsman told The Hill.

Former Housing and Urban Development Secretary Julián Castro was the second 2020 candidate to roll out a comprehensive higher-education reform platform.

His "People First Education" plan would eliminate tuition at public colleges, universities, community colleges, and technical and vocational schools while providing incentives to reduce non-tuition fees.

It would also expand grant programs and loan forgiveness programs to lower-income students, a group that some critics say are inadequately addressed by free-tuition plans, while also capping interest payments for some students.

Castro’s campaign told The Hill the plan would cost approximately $1.5 trillion and be paid for by repealing and replacing President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE’s tax plan, adding that investments into alleviating student loan debt and improving education would pay for themselves eventually.

-- Updated on June 3 at 5:50 p.m.