Who currently serves as a U.S. Representative from Arizona?

David Schweikert correctly serves as a U.S. Representative from Arizona. He has been in office since 2011, representing Arizona's 6th congressional district. His role as a representative involves not only legislating, but also serving the interests and needs of his constituents in Congress. Schweikert, a member of the Republican Party, has participated in important discussions and decisions on various national issues, including budgets and economic policies.

Mark Kelly and Kyrsten Sinema are both U.S. Senators from Arizona, which distinguishes their roles from that of a U.S. Representative. Doug Ducey, on the other hand, is the former Governor of Arizona and does not hold a legislative position in Congress. This context helps clarify the political roles of these individuals within the Arizona government.