Draining the Swamp is one of president Trump’s top priorities, including the fight against corruption conducted by U. S. officials overseas, such as then vice president Joe Biden’s having used the threat of withholding a $1.5 billion loan guarantee to Ukraine so that an investigation of his son Hunter would be (and was) halted, so the issue is not that Joe Biden is running for president and that this investigation will hurt him, the issue is rooting out corruption wherever and by whomever.