There are two Ukrainians at the heart of US President Donald Trump's personal lawyer Rudy Giuliani's allegations against former US Vice President Joe Biden and his son Hunter. Both headed Ukraine's prosecutor's office -- Viktor Shokin between 2015 and 2016, and Yuriy Lutsenko between 2016 and 2019.
Former Ukrainian President Petro Poroshenko has told CNN that he had no knowledge about his prosecutor-general's offer to help US President Donald Trump investigate the son of former Vice President Joe Biden, a leading candidate to face him in the 2020 presidential election.
Ukrainian presidential candidate Volodymyr Zelensky took the lead in the first round of national elections, according to preliminary results released by the country's Central Election Commission Monday.
