By laws of the U.S. Constitution, the federal government is required to carry on a census <u>every 10 years</u> that calculates how many people are currently living in each state. Occasionally, as the population goes up or down in certain states, a <u>reapportionment of U.S. House seats must be done in order to adjust to the changes.</u>
<u>Re-election rates</u> for incumbent members of the congress has always been extremely high. <u>Historically, it has rarely gone down 90%</u>. However, for States that experience slow growth or rapid loss of population, the threat of losing seats becomes an actual concern for congress members.
The most important reason for the United States to maintain a strong political presence in Cuba was mainly to protect American business interests on the island, as well as continuing to control the Caribbean area in the aspects of commerce and trade coming and going from the Panama Canal.