Who is the US Representative for eastern Idaho?

The correct answer is Mike Simpson, who has served as the US Representative for Idaho's 2nd congressional district, which includes eastern Idaho. He has held this position since 1999 and is known for representing the interests of his constituents in areas such as agriculture, energy, and public lands.

In contrast, the other individuals listed do not represent eastern Idaho. Tom McClintock serves as a representative for California, Chuck Fleischmann represents a district in Tennessee, and Kevin McCarthy is the representative for California's 20th congressional district and has also served as House Minority Leader. Understanding the distinct representatives for different regions helps clarify the representation structure within the U.S. Congress.