In her article about "interest groups' influence on policy" (posted on Canvas), author Leslie Finger describes her research on teachers' unions in the 50 states. Her study finds that teachers' unions: Group of answer choices gain power over state lawmakers mainly by making large campaign donations to legislative candidates. lack power in nearly every state due to opposition from big business and taxpayer organizations. need to hire outside lobbyists because it is illegal for government employees to contact their legislators to ask for policy changes. tend to be more powerful in states where their union membership rate is high, thus leading more of their allies to get elected