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2020 presidential campaign
Main article: Joe Biden 2020 presidential campaign
Speculation and announcement
Biden at his presidential kickoff rally in Philadelphia, May 2019
Between 2016 and 2019, media outlets often mentioned Biden as a likely candidate for president in 2020.[276] When asked if he would run, he gave varied and ambivalent answers, saying "never say never".[277] A political action committee known as Time for Biden was formed in January 2018, seeking Biden's entry into the race.[278] He finally launched his campaign on April 25, 2019,[279] saying he was prompted to run, among other reasons, by his "sense of duty."[280]

Campaign
In September 2019, it was reported that Trump had pressured Ukrainian president Volodymyr Zelenskyy to investigate alleged wrongdoing by Biden and his son Hunter Biden.[281] Despite the allegations, no evidence was produced of any wrongdoing by the Bidens.[282][283][284] The media widely interpreted this pressure to investigate the Bidens as trying to hurt Biden's chances of winning the presidency, resulting in a political scandal[285][286] and Trump's impeachment by the House of Representatives.

