They say the relief will cause harm to state and company revenues.
It's one of at least five major GOP lawsuits that have been filed in an effort to block the policy.
Should a judge rule in the group's favor, the long-awaited loan forgiveness would not move forward.
Here are the main points the Republican group will likely address in court, according to the filing:.
The filing also said broad debt cancellation was "inconsistent with the limited reason that the HEROES Act grants authority in the first place."
It added that Biden had not shown how up to $20,000 in relief was the necessary amount to avoid financial harm to borrowers.
The public can tune in to the Wednesday hearing here, and a summary of Biden's defense can be read here. »