リサ・クックが正式にFRB総裁に就任したのは... ？

This market will resolve to "Yes" if Lisa Cook formally ceases to hold the position of Member of the US Federal Reserve Board of Governors by the specified date, 11:59 PM ET. Otherwise, it will resolve to "No". Lisa Cook must formally cease to hold the specified position in accordance with the laws, rules, or procedures applicable to that position. Announcements of a future departure do not qualify. The means of departure do not impact settlement; resignation, removal, dismissal, or other means all qualify. Temporary leaves of absence, dated suspensions, indefinite suspensions, administrative leaves, or other temporary changes to the specified person’s duties in the specified position do not qualify. The resolution source for this market will be information from the Federal Reserve Board of Governors, however a consensus of credible reporting will also suffice.