The following links provide portals to contacting state (Iowa) and federal legislators, and agencies.
Iowa
Governor’s Office — https://governor.iowa.gov/contact/
Iowa Legislators — https://www.legis.iowa.gov/legislators find by district map also contains links to legislative committee, state agencies, etc.
Federal
U.S. Senate — links take you to a senator’ official website not campaign http://www.senate.gov/general/contact_information/senators_cfm.cfm
Senate Committees — Chairman composition etc., http://www.senate.gov/pagelayout/committees/d_three_sections_with_teasers/committees_home.htm
U.S. House of Representatives — Search via zip code — http://www.house.gov/representatives/find/
Search by state or last name — http://www.house.gov/representatives/
Agencies of the federal government:
http://www.usa.gov/directory/federal/
The White House http://www.whitehouse.gov/contact/