Conversation so far:
When did Glover's political activities begin?
Danny Glover was an early supporter of former North Carolina Senator John Edwards in the 2008 Democratic presidential primaries.
What was one of Danny Glover's political activities?
In February 2016, Danny Glover endorsed Vermont Senator Bernie Sanders for the Democratic presidential nomination. In February 2019, Glover endorsed Bernie Sanders for US president in 2020.
What did Danny Glover say about Bush?
Danny Glover was an outspoken critic of George W. Bush, calling him a known racist.

Question: Did Bush respond?
Self-contained rewrite: Did Bush respond to Danny Glover calling him a racist?