The Democratic head of the House Intelligence Committee, Representative Adam B. Schiff of California, learned about the outlines of a C.I.A. officer’s concerns that President Trump had abused his power days before the officer filed a whistle-blower complaint, according to a spokesman and current and former American officials.
The early account by the future whistle-blower shows how determined he was to make known his allegations that Mr. Trump asked Ukraine’s government to interfere on his behalf in the 2020 election. It also explains how Mr. Schiff knew to press for the complaint when the Trump administration initially blocked lawmakers from seeing it.
Before going to Congress, the C.I.A. officer had a colleague convey his accusations to the agency’s top lawyer. Concerned about how that avenue for airing his allegations was unfolding, the officer then approached a House Intelligence Committee aide, alerting him to the accusation against Mr. Trump. In both cases, the original accusation was vague.