The two Democratic candidates running against President Joe Biden shared criticisms of his student loan forgiveness plan.

The Supreme Court on Friday effectively ruined Biden's hopes of eliminating around $400 billion in student debt. Environmental lawyer Robert F. Kennedy Jr. and author Marianne Williamson took turns bashing Biden's efforts and offered their own solutions as presidential candidates.

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"The unfortunate SCOTUS ruling striking down President Biden's student loan forgiveness program was the predictable result of Biden's failure to bring Congress together on this issue of crucial importance to young Americans," Kennedy tweeted Friday. "President Biden knew his plan wouldn't survive a legal challenge. His plan gave the appearance of action, while accomplishing nothing."

Kennedy promised "to pressure Congress" to legislate more funding into education, going so far as to suggest that "a fraction of our military budget" go to forgiving student loans. He compared the proposed allotment toward student loans to funding "infrastructure and [the] environment" because "it is an investment in America's future."

"Today's SCOTUS works to proactively diminish the rights and opportunities of the people of the United States. (Biden can get around this, by the way,)," Williamson tweeted. "As President, I will expand the Court if necessary. Nothing in the Constitution says it's limited to 9 justices."

All the Republican-nominated justices ruled against the president in Biden v. Nebraska, in which six Republican-led states alleged he exceeded his legal authority when he attempted to cancel up to $20,000 in debt for those holding federal student loans. However, the second case, Department of Education v. Brown, which involved a lawsuit between two student loan borrowers who did not qualify for all or part of the relief and the Biden administration, resulted in a unanimous ruling against the students.

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Williamson also shared Sen. Bernie Sanders's (I-VT) idea that Biden utilize the authority under the Higher Education Act of 1965 to cancel debt, calling it "the right idea." Biden subsequently made a statement Friday promising that certain loans would be released via this method.

Additionally, after the pause on student loan payments, Biden announced that for the 12 months following, the Department of Education will not refer borrowers enrolled in his new "On Ramp Repayment Program" to creditors should they miss a payment.