In Poland, the right-wing populist party that is basically buying votes with money also has 30% that is more or less stable in spite of numerous scandals, glaring incompetence in almost everything they touch, supporting Putin's team (Le Pen, Orban, etc.), publicly lying on numerous occasions (the prime ministers has been convicted of lying, so you can legally call him a liar) and so on. In spite of all this, they can still count on their 30%, mostly because they took over state media and entered into alliance with the Catholic Church which is still strong in villages and smaller towns, especially in the east.