The Shaff Plan was a proposed amendment to the Iowa Constitution, proposed by David Shaff

David Shaff

David Shaff is a former state legislator of Iowa who proposed the rejected Shaff Plan in 1963. He is from Clinton, Iowa.-References:...

. The amendment would have called for the Iowa Senate

Iowa Senate

The Iowa Senate is the upper house of the Iowa General Assembly. There are 50 members of the Senate, representing 50 single-member districts across the state with populations of approximately 59,500 per constituency. Each Senate district is composed of two House districts...

 to be apportioned by population, and the Iowa House of Representatives

Iowa House of Representatives

The Iowa House of Representatives is the lower house of the Iowa General Assembly. There are 100 members of the House of Representatives, representing 100 single-member districts across the state with populations of approximately 29,750 for each constituency...

 to be apportioned by area. In December 1963, in a public referendum, the amendment was rejected. In February 1964, two reapportionment bills were passed. They would later be declared unconstitutional, with respect to the Supreme Court decision in Reynolds v. Sims

Reynolds v. Sims

Reynolds v. Sims, 377 U.S. 533 was a United States Supreme Court case that ruled that state legislature districts had to be roughly equal in population.-Facts:...

.