Former New York City Mayor Rudolph Giuliani met with special counsel Robert Mueller on Tuesday to reopen negotiations over a possible interview with President Trump, The Washington Post reported. 

Giuliani, Trump’s newly appointed personal lawyer, cautioned that Trump and his advisers remain opposed to a possible interview with Mueller’s investigators who are examining possible collusion between the Trump campaign and Russia.

Giuliani also sought answers from Mueller on when the investigation is expected to end, according to the Post. 

Mueller reportedly told Giuliani that he wanted to ask the president about actions he took during the transition period in late 2016 before his administration and in early 2017 his first months in office. Understanding why Trump took certain actions, Mueller told Giuliani, would help investigators determine whether to end the investigation into possible obstruction of justice.