Jeff Sessions

WASHINGTON — Attorney General Jeff Sessions is preparing for sharp questions from his former Senate colleagues about his role in the firing of James Comey, his Russian contacts during the campaign and his decision to recuse himself from an investigation into possible ties between Moscow and associates of President Donald Trump.

The public testimony today before the Senate Intelligence committee should yield Sessions’ most extensive comments to date on questions that have dogged his entire tenure as attorney general and that led him three months ago to step aside from the Russia probe.

Lawmakers for weeks have demanded answers from Sessions, particularly about meetings he had last summer and fall with the Russian ambassador to the United States.

Those calls have escalated since fired FBI Director James Comey cryptically told lawmakers on Thursday that the bureau had expected Sessions to recuse himself weeks before he did from an investigation into contacts between Trump campaign associates and Russia during the 2016 presidential election.