U.S. Senate:

Senator Charles Grassley (R)
135 Hart Building
Washington, DC 20510
202-224-3744 Fax: 202-224-6020
Website

Senator Tom Harkin (D)
731 Hart Building
Washington, DC 20510
202-224-3254 Fax: 202-224-9369
Website

U.S. House of Representatives:

Congressman Bruce Braley (D-1st)
1019 Logworth House Office Building
Washington, DC 20515
202-225-2911 Fax: 202-226-5051
Website

Congressman Dave Loebsack (D-2nd)
1221 Longworth House Office Building
Washington, DC 20515
202-225-6576 Fax: 202-226-1278
Website

Congressman Leonard Boswell (D-3rd)
1427 Longworth House Office Building
Washington DC 20515
202-225-3806 Fax: 202-225-5608
Website

Congressman Tom Latham (R-4th)
2217 Rayburn House Office Building
Washington DC 20515
202-225-5476 Fax: 202-225-3301
Website

Congressman Steve King (R-5th)
1131 Longworth House Office Building
Washington, DC 20515
202-225-4426 Fax: 202-225-3193
Website