After two years during which it didn’t need to worry about congressional subpoenas, President Barack Obama’s legal shop is making preparations for a possible onslaught of Republican investigations.

Two members of the White House Counsel’s Office, Kathryn Ruemmler and Kimberley Harris, are taking the initial lead, three people familiar with the administration’s planning say. Both have done tours of duty as U.S. Justice Department officials and as litigators in private practice, giving them broad experience in investigations.