President Trump’s personal attorney, Rudolph W. Giuliani, negotiated earlier this year to represent Ukraine’s top prosecutor for at least $200,000 during the same months that Giuliani was working with the prosecutor to dig up dirt on vice president Joe Biden, according to people familiar with the discussions.

The people said that Giuliani began negotiations with Ukraine’s top prosecutor, Yuri Lutsenko, about a possible agreement in February. In the agreement, Giuliani’s company would receive payment to represent Lutsenko as the Ukrainian sought to recover assets he believed had been stolen from the government in Kyiv, those familiar with the discussions said.

The talks occurred as Giuliani met with Lutsenko in New York in January and then in Warsaw in February while he was also gathering information from Lutsenko on two topics Giuliani believed could prove useful to Trump: the involvement of Biden, and his son, Hunter, in Ukraine and allegations that Ukraine, not Russia, had interfered in the 2016 election.