Grassley, 92, serves as Senate president pro tempore and is third in line after the vice president and the speaker. He was at home in New Hartford, Iowa, recovering from a gallstone procedure he had described on X, and thus was not at the dinner — a fact that put him in the spotlight amid succession questions.
The apprehended suspect, identified as 31-year-old Cole Allen, was expected in federal court. Grassley later thanked the Secret Service and arranged a bipartisan Senate briefing on security protocols as officials debated whether the president and vice president should attend the same events.