Hunter Biden, the president’s son, appeared on Capitol Hill on Wednesday morning to offer to publicly testify in House Republicans’ impeachment investigation into his father, though he insisted he would not appear for a private deposition they scheduled over his refusals.

The younger Mr. Biden, who has been served a subpoena to testify, spoke to reporters in a hastily called news conference outside the Capitol near the Senate, across the complex from a House office building where Republican lawmakers were waiting to question him behind closed doors.

[House Republicans say they will hold Hunter in contempt, which is a rather empty threat, as the DoJ will refuse to prosecute it. Even if the GOP agreed to question Hunter in public, though, he’d still refuse to comply, almost certainly. His criminal indictment on some of these same issues puts him at risk of self-incrimination, so the only response Hunter would give in either setting would be taking the Fifth and making a speech or two along the way. — Ed]