<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Have presidential election results been challenged in any other elections besides the 2020 election?
<|assistant|>
Yes, presidential election results have been challenged in previous elections, including the 2016 election in which several states disputed the results of the election. In some cases these challenges resulted in changes to the certified vote totals, while in other cases such disputes have been decided by the Supreme Court.