Which of the following events contributed to Joseph McCarthy's rise to power during the early 1950s? The House Un-American Activities Committee was formed. Alger Hiss was prosecuted and convicted as a Soviet spy. The Senate passed a resolution to censure McCarthy. Republicans gained control of both houses of Congress.

The following events which contributed to Joseph McCarthy's rise to power during the early 1950's was the House Un-American Activities Committee being formed and Alger Hiss being prosecuted and convicted as a Soviet spy ... McCarthy's rise to power during the early 1950's is often correlated to the House Un-American Activities Committee was formed, but they actually never worked together. The prosecution and conviction of Alger Hiss as a Soviet spy set off the hysteria of catching suspected communists.