Yovanovitch was nominated in May, 2016 and presented her credential in August, 2016. Obama was President ... does that mean there were "concerns" about Hunter Biden before Trump was elected President? Before Joe Biden became an announced potential Dem candidate for the Presidency? Sure sounds like 3 years' worth of anachronism here if the point of investigating Burisma and Hunter Biden's involvement therewith is to hurt Joe Biden's candidacy.