1. Trump asked for an investigation into the Bidens.

The President: “The other thing. 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 so whatever you can do with the Attorney General would be great. Biden went around bragging that he stopped the prosecution so if you can look into it … It sounds horrible to me.”

In this passage of the reconstructed call transcript, Mr. Trump pushed the new Ukrainian president to get his country’s prosecutor to open an investigation into former Vice President Joseph R. Biden Jr. and his younger son, Hunter Biden. In May, Ukraine’s top prosecutor had said there was no evidence of wrongdoing by the Bidens to investigate.

When he was vice president, Mr. Biden had pushed the Ukrainian government in 2015 to fire its top prosecutor, Viktor Shokin, who was widely seen as an obstacle to reform because he failed to bring corruption cases. At the time, Hunter Biden sat on the board of a Ukrainian energy company, Burisma Holdings, that was the subject of an investigation that Mr. Shokin’s office had long left dormant.

In 2018, the former vice president talked about his effort to get Mr. Shokin removed — carrying out the Obama administration’s policy — at a Council on Foreign Relations event, and Mr. Trump’s supporters have used a brief video clip from those remarks as part of their insinuations that Mr. Biden was trying to protect Burisma Holdings from prosecution. Mr. Biden did not portray his effort to get Mr. Shokin out as stopping any prosecution of Burisma Holdings.

2. Trump alluded to American aid, while not explicitly linking his request to unfreezing it, the document shows.

The President: “I will say that we do a lot for Ukraine. We spend a lot of effort and a lot of time.”

At the time of this call, Mr. Trump was holding back hundreds of millions of dollars in military assistance to Ukraine that Congress had appropriated to help that country fend off Russian aggression. The reconstructed transcript does not directly refer to Mr. Trump’s freezing of the aid or whether he would unfreeze it. However, it says Mr. Trump referred to large-scale American assistance to Ukraine in the above passage, and several sentences later, Mr. Trump added:

The President: … “but the United States has been very, very good to Ukraine. I wouldn’t say that it’s reciprocal, necessarily, because things are happening that are not good. But the United States has been very very good to Ukraine.”

The next thing Mr. Trump did — after Mr. Zelensky responded to this statement by thanking Mr. Trump for his support “in the area of defense” and saying Ukraine was “ready to continue to cooperate for the next steps,” such as by buying American missiles — was to ask for investigations as a “favor.”