Context Presidential debates in USA have a long tradition already. The two main (or more, if the case) candidates have the opportunity to confront their platforms, using their public speech prowess and power of argumentation to win voters. Content We include here the free text transcript of the first presidential debate from USA elections 2020, between Donald Trump, the current president and his challenger, Joe Biden. Acknowledgements We would like to thank to the providers of this data. Inspiration Use this free text data to mine the text for topics, main ideas, expressions, frequency and volume of contributions from the two contra-candidates and the moderator. Analyze the styles of the two contra-candidates, highlight their preferred expressions, see what are their weak parts. Try to extract the main topics of the discussions.