Although political protests are not a new political phenomenon, they are happening more frequently in democracies all over the world. In this context, it is important to study whether they are an effective instrument through which citizens can affect political outcomes and ensure that their preferences are reflected in politics. In this work, I analyze the effects of the protests that took place in Brazil in 2013, looking both of voters and politicians behavior. First, using data on elections at the municipal level, I show that the protests are associated with a decrease in turnout rate and an increase in the share of protest votes (the null votes). Moreover, the protests affected the distribution of votes: there is a negative correlation between incumbents vote share and the incidence of protests. With respect to the effects on politicians, I focus my analysis in the Chamber of Deputies of Brazil to I analyze whether the protests had any effects in the legislators behavior. Using a difference-in-difference approach, I show that the protests did not affect all relevant dimensions of the legislators performance, such as presence in plenary sessions, allocation of federal budget amendments and proposal of bills. However, I find evidence of heterogeneous effects regarding reelection incentives and relative position in the coalition.