Answer:
Presidential elections take place every four years, and Congressional elections occur every two years.
Explanation:
According to the United States Constitution, the period of intervals at which the election will be conducted for the President and the Congress members is well stipulated in which it is stated that "Presidential elections take place every four years, and Congressional elections occur every two years."
The congressional elections are done for House of Representatives members and one-third of the total membership of the Senate every two years.