Grayling was stood down from the Cabinet when Boris Johnson became Prime Minister in July 2019. Johnson hoped for Grayling to become Chair of the Intelligence and Security Committee by being voted in by the Conservative majority on the committee. However, fellow Conservative Julian Lewis defeated Grayling in the ballot by using opposition votes to secure a majority, in what was seen as a blow to Johnson and his adviser Dominic Cummings. Six weeks later, Grayling resigned from the committee apparently due to his failure to become chair.