Sorry about the title, but most of you might not know what Burisma is. You can get a more complete and probably more correct background on the poll question here: <Biden>
In short, after Obama appointed Joe Biden as his point man in the Ukraine, Joe’s son Hunter left the U.S. military and was suddenly hired as a vice president of Ukrainian energy company, Burisma, at a pay of $600,000 per year. A Ukrainian prosecutor began to investigate Burisma. Thereafter Joe Biden told the Ukraine that they had six hours to fire that prosecutor or they would lose $1 billion in US aid. The Ukraine fired the prosecutor and the US aid was thereafter given to them.