Conversation so far:
When was Rogers Morton elected to Congress?
Rogers Morton became a member of the House of Representatives in January 3, 1963.
Was it a close race between Rogers Morton and Thomas Francis Johnson?
No. Rogers Morton decided to challenge Democratic incumbent Thomas Francis Johnson of Maryland's 1st congressional district. Johnson, who was reeling from a political scandal, lost in the general election.

Question: What did he do as a congressman?
Self-contained rewrite: What did Rogers Morton do as a congressman?