A top GOP senator is predicting another vacancy on the Supreme Court this year.

“Every year you get these rumors. Somebody’s going to quit. Everybody looking – ‘Have they hired their clerks?’ Etcetera, etcetera. You know, are they sick or something?” Sen. Chuck Grassley (R-Iowa) said on C-SPAN’s “Newsmakers.”

“I don’t know who it’s going to be, but I think we’re going to have [a vacancy] yet this year,” he added.

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Grassley, the chairman of the Senate Judiciary Committee, said he did not know of any particular justice who was planning to leave the court, saying only that he had “just heard rumors, no name attached to it.”

The Iowa Republican has made a similar prediction before, saying last month that he expected one of the justices to resign sometime this summer.

A vacancy on the Supreme Court would allow President Trump to nominate a second judge to the bench. His first nominee Neil Gorsuch was confirmed in April, filling the seat left vacant by the death of Justice Antonin Scalia in February 2016.

Shortly after Scalia’s death, former President Barack Obama nominated Judge Merrick Garland to the Supreme Court. But Garland was ultimately blocked by Senate Republicans, who argued that a justice should not be nominated in a president’s final year in office.

Two justices, Ruth Bader Ginsburg and Anthony Kennedy, are in their 80s. Justice Stephen Breyer is in his 70s.