Conversation so far:
When did Joe Biden get married?
On August 27, 1966, while Joe Biden was still a law student, he married Neilia Hunter.
Who did Joe Biden marry?
On August 27, 1966, while Joe Biden was still a law student, he married Neilia Hunter.
Did Joe Biden have children?
Joe Biden and Neil Hunter had three children, Joseph R. Beau Biden III in 1969, Robert Hunter in 1970, and Naomi Christina in 1971.

Question: What political work was he doing?
Self-contained rewrite: What political work was Joe Biden doing in his early political career?