Conversation so far:
What was a notable event for Kenesaw Mountain Landis?
Kenesaw Mountain Landis struck down a challenge to the Interstate Commerce Commission's jurisdiction over rebating.
Did Kenesaw Mountain Landis retire from his position as judge?
On February 18, 1922, Kenesaw Mountain Landis announced his resignation as judge effective March 1, stating, There are not enough hours in the day for all these activities.

Question: What was he doing in this period?
Self-contained rewrite: What was Kenesaw Mountain Landis doing in the 1920s?