Conversation so far:
What did P.
G.
Wodehouse do in Broadway?
Wodehouse "the most observant, literate, and witty lyricist of his day".
What prompted him to go to Broadway?
they thought the song lyrics weak and invited Wodehouse to join them on its successor.
How many musicals did he write?
CANNOTANSWER.
Who invited him to Broadway?
Jerome Kern introduced him to the writer Guy Bolton, who became Wodehouse's closest friend and a regular collaborator.
What was his best success?
the long-running Sally (1920, New York).
Why did he leave?
CANNOTANSWER.
Was he successful?
In these musicals Wodehouse's lyrics won high praise from critics as well as fellow lyricists such as Ira Gershwin.

Question: What was he praised for?
Self-contained rewrite: What was P. G. Wodehouse praised for?