Conversation so far:
What is the change of course that is talked about in Huey Long's time as governor?
Long announced his intention to run for the U.S. Senate in the Democratic primary of September 9, 1930.
Are there any other interesting aspects about the Huey Long article?
Long portrayed his campaign as a referendum on his programs: if he won it was a sign the public supported his programs, and if he lost he promised to resign.
Did Huey Long win the Senate seat in 1930?
Long defeated incumbent Senator Joseph E. Ransdell, an Alexandria native from Lake Providence in East Carroll Parish.

Question: Why did he decide to do this?
Self-contained rewrite: Why did Huey Long decide to complete most of his four years as governor, before his term in the Senate?