The Wyoming Rule is a proposal to increase the size of the United States House of Representatives so that the standard representative-to-population ratio would be that of the smallest entitled unit, which is currently the State of Wyoming. Under Article One of the United States Constitution, each state is guaranteed at least one representative. If the disparity between the population of the most and least populous states continues to grow, the disproportionality of the U.S. House of Representatives will continue to increase unless the body, whose size has been fixed at 435 since 1929, except for a brief period from 1959 to 1963, is expanded.