Trees can tell members about upcoming legislative hearings, or remind them to vote on election day, or urge them to attend a rally. The tree message has to be simple, because complicated messages get garbled when passed through several people. He didn't offer detailed arguments about why King George's tax policies were unfair. The importance of telephone trees is proven every legislative season, when gun club members and their friends and families pack a room to watch a hearing on a bill affecting gun rights. It makes a very powerful impression on legislators when they see the whole room filled with pro-rights citizens.
Phone trees are particularly important at election times.
A few dozen votes is often the margin of victory in tight state representative or city council seat. If you and a few friends can make a few hundred phone calls in the two weekends before the election, you can put a pro-gun candidate over the top.