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.
... under the age of 18 living with them, 68.0% are married couples living together, 10.0% have a female householder with no husband present, and 18.5% are non-families. 15.2% ...