Which event in soviet union involved the arrest of millions of communist party members, military officers, clergy, and intellectuals?

answer:

won re-nomination with no opposition he also had the support of his party

explanation:

it saw incumbent president andrew jackson, candidate of the democratic party, defeat henry clay, candidate of the national republican party. jackson won re-nomination with no opposition, and the 1832 democratic national convention replaced vice president john c. calhoun with martin van buren.

i see, would you mind putting it as one?