1. However, outsider groups can lose support if they are too violent or inappropriate. This harms their potential influence, as they may instead be punished for dangerous behaviour.
2. National Union of Students - 600 students union. Clegg backtracked on his promise not to introduce tuition fees a month into power. Some protests were peaceful, but many refused police orders, storming Tory HQ and abusing police officers.
3. This had limited influence as fees were still introduced. However, arguably this did cause a drop in support for Clegg, and the Lib Dems haven't recovered since.
4. Thus, although protests can be dangerous, mass support puts pressure on the government to react, highlighting important issues, that if go unsolved, can threaten the governments reputation. Thus, they can have an important influence.