Impeachment inquiry shows Trump at the center of Ukraine efforts against rivals

Two Cabinet secretaries. The acting White House chief of staff. A bevy of career diplomats. President Trump’s personal attorney. And at the center of the impeachment inquiry, the president himself.

Over two weeks of closed-door testimony, a clear portrait has emerged of a president personally orchestrating the effort to pressure a foreign government to dig up dirt on a potential 2020 political rival — and marshaling the full resources of the federal bureaucracy to help in that endeavor.

On Thursday, acting White House chief of staff Mick Mulvaney waded further...