Final answer:
The claim concerning the Change to Win federation's exclusive focus on the Democratic Party is false; labor unions have utilized a variety of strategies including political advocacy through various parties.
Step-by-step explanation:
The statement that the Change to Win federation planned on focusing more on working through mainly the Democratic Party instead of direct political action by the member unions is false. The Change to Win federation did indeed work through political means, but they did not focus solely on the Democratic Party as their avenue for change. Historically, labor unions have pursued various strategies including direct action, and political advocacy through multiple political parties, not just the Democrats.