The Left has had it in for Giuliani from the 1990s, when he cleaned up New York City after 25 years of liberal or ineffective mayors and greatly lowered rampant crime. Under his leadership, and that of Mike Bloomberg, a liberal but no fool, New York City had a physical and economic renaissance even as other large cities in the North and the West Coast continued to decline into their present hellhole conditions.
This was about more than just two election workers. This is payback, just as Richard Nixon was punished for his attacks on Alger Hiss and Helen Gahagan Douglas.