'It's how often a third of the members of the U.S. Senate are up for re-election'
every 2 years
THE THIRD CATEGORY: Its how often a third of the members of the U.S. Senate are up for re-election
It's how often a third of the members of the U.S. Senate are up for re-election
It's how often a third of the members of the U.S. Senate are up for re-election
THE THIRD CATEGORY
every 2 years
THE THIRD CATEGORY