Question: The Republican head of the Congressional NextGen 9-1-1 Caucus has been the U.S. Representative for Illinois's 15 congressional district since what year?
Sentence (from "John Shimkus"): John Mondy Shimkus ( , born February 21, 1958) is the U.S. Representative for Illinois 's 15 congressional district , since 1997.
Relevant evidence: Yes