Each state of the United States selects two senators to represent their states in the United States Senate. In 1913, the 17th Amendment[?] to the United States Constitution provided for the direct popular election of senators; prior to this, senators were selected by state legislatures.
... married couples living together, 12.2% have a female householder with no husband present, and 21.9% are non-families. 17.7% of all households are made up of individuals ...