At the end of 2017, Romanian Parliament tried to make controversial changes to criminal laws and other laws that might severely influence justice independence, leading to protests and external warnings:
"I offered books to the PSD senators: ‘Animal Farm’ and ‘1984’ by Orwell. Mrs. Ecaterina Andronescu, Mr. Bodog, Mr. Brăiloiu threw the books on the floor, and the two gentlemen wanted to prove that their vocabulary is full of slang."
The video of this action became viral.
Having a small number of parliamentarians (less than 10%) could not influence the leading parties adopting of the laws (they have more than 50% in Parliament), but I assume that this action might influence how some people see the Parliament members.
I am wondering if this kind of action has a name. I am thinking about "guerrilla politics", since this a asymmetrical fight (small opposition party vs. solid coalition in power).
Question: Are there examples of "guerrilla politics" being effective in an European country?
By effective I mean that a small party manages to obtain significantly more votes in the subsequent elections or even wining the elections / being part of a coalition in power.