Answer:
Congress may not suspend D. habeas corpus unless a national crisis requires it.
Approximately 1/3 of Senators are up for re-election every two years
Step-by-step explanation:
Congress may not suspend habeas corpus unless a national crisis requires it. A habeas corpus states that any detained citizen must be presented in a court to study his/her case in a period.
The senators are divided into three classes. Every class, which is approximately 1/3 of the senators, has to face elections every two years. The three of them face elections in different years.