Answer:
some of the most effective lobbyists are former government officials.
Explanation:
According to my research, the term “revolving door” is a political term that is defined as "the means by which government officials leave office to become lobbyists as well as the means that turn lobbyists into government officials". This being the case, it exists because some of the most effective lobbyists are former government officials.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.