Memo: Trump prodded Ukraine leader on Biden claims

President Donald Trump repeatedly prodded Ukraine's new leader to work with Rudy Giuliani and the U.S. attorney general to investigate Democratic political rival Joe Biden, according to a rough transcript summarizing the call released Wednesday. In the call, Trump raised unsubstantiated allegations that Biden sought to interfere with a Ukrainian prosecutor's investigation of the former vice president's son Hunter.

"There's a lot of talk about Biden's son, that Biden stopped the prosecution and a lot of people want to find out about that," Trump said to Ukrainian President Volodymyr Zelenskiy. The conversation between the two leaders is one piece of a whistleblower's complaint, which followed the July 25 call.

The complaint is central to the formal impeachment inquiry launched Tuesday by House Speaker Nancy Pelosi.