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.
... one-third elected after a four-year period, two-thirds elected after the next four-year period. Beside the Senate there is the Chamber of Deputies or Cāmara dos ...