 Defenders of the Basic Argument have attempted to counter these objections in a number of ways. Some respond by arguing, contra Fischer (2006), that the Basic Argument does not rely on the premise that an agent can be responsible for an action only if she is responsible for every factor contributing to that action (see Istvan 2011). Others argue, in response to Mele (1995) and Clarke (2005a), that it is highly counterintuitive to believe that an agent can be morally responsible for an action when no factor contributing to that action is up to that agent (Istvan 2011). In response to the suggestion that certain versions of agent-causal libertarianism can immunize the agent to the Basic Argument (see Clarke 2005a), they argue that such accounts actually fail to do so (Istvan 2011). Lastly, some defenders of the Basic Argument recast the argument in a form that eliminates certain problems associated with Strawson’s original version and offer additional thought experiments to bolster its underlying assumptions (see Parks 2009).