Mike Pompeo

President Trump, Vice President Pence, Secretary of State Mike Pompeo and much of officialdom was "in the loop" throughout the Ukraine affair, a key witness told Congress on Wednesday in watershed testimony.

Gordon Sondland, the U.S. ambassador to the European Union, rejected the idea that he was part of any back channel or shadow effort.

He said he conferred with the State Department and the National Security Council all this year as he and other envoys worked to try to get concessions for Trump from Ukrainian President Volodymyr Zelenskiy.

It's the call that spurred an impeachment inquiry. On July 25, President Trump spoke with Ukrainian President Volodymyr Zelenskiy. The phone call would become the foundation of a whistleblower complaint alleging that Trump held up military aid for Ukraine to pressure Zelenskiy to investigate Trump's political rivals.

Each week — and some days, it seems, each hour — brings more clarity to the picture of the Ukraine affair and the political crisis it sparked in Washington over impeachment.

But some of the biggest questions still don't have answers.

Here's a look at where the saga stands, what investigators want to learn and what major decisions still must be reached before the fever breaks.

The Ukraine affair

No one disputes the basic outlines of the Ukraine affair, including President Trump:

Updated at 5:22 p.m. ET

Michael McKinley, a seasoned diplomat — and up until last week, a senior adviser to Secretary of State Mike Pompeo — has testified before House committees that are leading the impeachment inquiry into President Trump.

Updated at 1:38 p.m. ET

Secretary of State Mike Pompeo has publicly acknowledged that he was listening to the July 25 phone call between President Trump and Ukrainian President Volodymyr Zelenskiy that has sparked an impeachment inquiry.

"I was on the phone call," Pompeo said Wednesday in Rome.

Updated at 5:17 p.m. ET

House Democrats postponed the first of their planned series of depositions about the Ukraine affair after objections by Secretary of State Mike Pompeo on Tuesday.

The former U.S. ambassador to Ukraine, Marie Yovanovitch, had been expected to meet with the House Intelligence Committee behind closed doors on Wednesday — but that has been moved to Oct. 11, a committee official said.

U.S. Secretary of State Mike Pompeo doubled down Sunday on the claim that Iran was responsible for attacks on two tankers traveling in the Strait of Hormuz, despite furnishing no new evidence beyond a video distributed last week by the Pentagon.

Secretary of State Mike Pompeo met with Russian Foreign Minister Sergey Lavrov in Sochi Tuesday, holding talks that are aimed at improving relations between Washington and Moscow. But the discussions also allowed them to air their disagreements — and they took advantage of that, diverging on topics from Russia's attempts to destabilize other countries to how to resolve crises in Venezuela, Iran and other complicated issues.

U.S. Secretary of State Mike Pompeo made an unscheduled visit to Baghdad after canceling a planned meeting with Chancellor Angela Merkel in Germany. The visit comes as the U.S. is stepping up pressure on Iraq's larger neighbor, Iran, and claiming that Iran could be planning threats against U.S. forces in the region.

The White House and departments of State and Defense have not been specific about what those threats might be.

WikiLeaks was already established as an online outlet for posting secret documents from anonymous leakers well before its massive disclosure of U.S. government and military information in 2010. That was the year WikiLeaks' Australian founder, Julian Assange, faced allegations that led to his seeking asylum in Ecuador's London embassy.

Here is a timeline of WikiLeaks' key disclosures and related developments.

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