Sen. Chuck Grassley says he expects a Supreme Court justice to resign this summer

Grassley is the chairman of the Senate Judiciary Committee.

"I would expect a resignation this summer," said Grassley, R-Iowa, according to The Muscatine Journal. His comments came during a Q&A at a visit to the Kent Corp. in Muscatine in his home state.

Without naming a justice, he said an upcoming resignation is "rumored."