Through the project #EEG ManyLabs a international researcher group is attempting to replicate influential EEG studies. Two of these studies are Amodio et al. 2007 and 2008. We try to replicate their findings that political liberalism and conservatism is reflected in different outcomes in a Go-NoGo task (Amodio et al., 2007) as well as the correlation between the behavioural inhibition (BIS) and activation system (BAS) and the outcomes in the same Go-NoGo task. To clarify the relationship between cognitive control processes and political attitude and BIS/BAS, we exactly replicated the methodology used by Amodio et al. We furthermore extended the amount of questionaires used in the original studies to clarify the underlying factors of political attitudes and the BIS/BAS. The first replication attempt is purely behavioural. We expect more politically conservative people to make more NoGo errors due to their cognitive rigidity. Furthermore the behavioural inhibition system should relate to less errors in response to NoGo trials and the behavioural acitvation system to quicker response times.