Biden's campaign collapsed in September 2019 when it became known that he is currently under investigation by Ukrainian prosecutors for misusing his power as U.S. Vice President to interfere in a [[money-laundering]] investigation of his son,<ref>https://twitter.com/realDonaldTrump/status/1175392716110401543</ref> [[Hunter Biden]].<ref name="thehill.com">https://thehill.com/opinion/white-house/436816-joe-bidens-2020-ukrainian-nightmare-a-closed-probe-is-revived</ref> | Biden's campaign collapsed in September 2019 when it became known that he is currently under investigation by Ukrainian prosecutors for misusing his power as U.S. Vice President to interfere in a [[money-laundering]] investigation of his son,<ref>https://twitter.com/realDonaldTrump/status/1175392716110401543</ref> [[Hunter Biden]].<ref name="thehill.com">https://thehill.com/opinion/white-house/436816-joe-bidens-2020-ukrainian-nightmare-a-closed-probe-is-revived</ref> |