Corey Lewandowski – President Trump's first campaign manager – and Rick Dearborn – former campaign policy aide, White House deputy chief of staff, and executive director of the Trump transition team – are scheduled to testify behind closed doors before the House Intelligence Committee Wednesday.
Dearborn had announced plans to leave the White House early this year but has not done so yet.
The Daily Beast reported Tuesday that Lewandowski hired a lawyer to represent him in the Russia probe.