Washington — Senate Democrats are continuing to make their case for filling the Supreme Court vacancy, arguing that a deadlocked court could harm small businesses given the uncertainty on everything from patent infringement to overtime pay.

The Democrats’ policy and communications arm is releasing a report Tuesday detailing how a vacancy on the high court creates uncertainty across the country. The report is the second in a series, the first of which focused on how a vacancy affects the criminal justice system.

“When a deadlock occurs, important, national issues remain undecided until the court is able to rehear the case or another case raising the same issue comes before it,” the report’s authors wrote. “That uncertainty is harmful for all Americans — and especially for small businesses, which need certainty and predictability to operate.”

Democrats have been pushing for the Senate to consider President Obama’s Supreme Court nominee, Chief Judge Merrick Garland of the D.C. Circuit. Obama nominated Garland following Justice Antonin Scalia’s death in February. But Republicans have vowed not to consider the nomination while in the midst of a presidential election, arguing the American people should decide the direction of the court through the election.

Part of the Democrats’ case for Garland involves the argument that the judicial branch is harmed by an eight-justice court, with the risk of deadlocked decisions since four justices were appointed by Republican presidents and four appointed by Democrats.

Senate Democrats pointed to one deadlocked case in their small-business report, relating to a case about whether borrowers can require their spouses to guarantee loans. On March 22, the Supreme Court was evenly split on the case, the first deadlocked decision since Scalia’s death, sending it back to the lower court.

In addition to the loan case, Democrats pointed to a handful of other pending cases relating to small business issues, arguing that a lack of direction from the high court fosters uncertainty. Those cases related to standards for finding infringement of patents and awarding damages and standards relating to federal overtime pay.