1/ Trump was briefed about the whistleblower complaint before lifting the hold on military aid to Ukraine in September. White House lawyers discussed the complaint with Trump in late august – after the inspector general for the intelligence community concluded that the administration needed to send it to Congress – and explained they were trying to determine whether they were legally required to give it to lawmakers. The two lawyers, Pat Cipollone and John Eisenberg, told Trump they would ask the Justice Department’s Office of Legal Counsel to determine whether they had to disclose the complaint. A week later, the OLC concluded that the administration did not have to hand it over. In early September (either Sept. 7 or 9), Trump told Gordon Sondland, the U.S. ambassador to the European Union, that he was not seeking “a quid pro quo� with the Ukrainian government by withholding the aid. Three House committees opened an investigation into Trump’s dealings with Ukraine on Sept. 9, and the administration lifted the freeze on $391 million in security assistance to Ukraine on Sept. 11. (New York Times / Wall Street Journal / CNN)

2/ Two officials at the White House Office of Management and Budget resigned over concerns about Trump’s decision to withhold military aid to Ukraine. Career OMB employee Mark Sandy told House investigators during a closed-door interview this month that one of the former OMB officials “expressed some frustrations about not understanding the reason for the hold� before stepping down in September. A second official working in the legal division of OMB also offered a “dissenting opinion� over the legality of the hold before resigning shortly thereafter. Neither official has been identified, and it is unclear how closely their resignations were tied to the hold on U.S. military aid. (Washington Post / New York Times)

3/ Rudy Giuliani was negotiating personal business with Ukraine’s top prosecutor while encouraging the same prosecutor to investigate the Bidens and allegations that Ukraine, not Russia, had interfered in the 2016 election. A February draft retainer called for Yuri Lutsenko to pay at least $200,000 to retain Giuliani Partners, and Joseph diGenova and Victoria Toensing, a husband-and-wife legal team aligned with Trump, to help recover money allegedly stolen from Ukraine. Lutsenko also wanted Giuliani to help him get a meeting with Attorney General William Barr. Lutsenko said Giuliani told him he would have to hire a lobbyist to get the meeting, and that “They even offered me such a company.� Giuliani has repeatedly said he has no business in Ukraine and that none of the deals were finalized. (New York Times / Washington Post)

4/ Trump denied sending Rudy Giuliani to Ukraine to dig up dirt on the Bidens. Giuliani, however, publicly admitted earlier this month that he went to Ukraine on Trump’s behalf to conduct an investigation “concerning 2016 Ukrainian collus...