Rep. James Comer (R-KY) issued two subpoenas for his House Oversight Committee hearings for the impeachment inquiry he has been promoting to fellow Republicans, and they're for Hunter Biden and James Biden. The proceedings are referred to as an inquiry and not an investigation because there was not a full House vote to authorize a full impeachment investigation.
New Speaker Mike Johnson (R-LA) indicated upon being elected that Republicans would "follow the evidence" around the Biden impeachment. He claimed that it was likely that the Bidens would be subpoenaed because "desperate times call for desperate measures and that perhaps is overdue."
The move was announced in the middle of Ivanka Trump's testimony in the New York fraud suit against the Trump Organization and after the MAGA movement suffered losses in elections for Ohio, Kentucky, Virginia and several smaller communities around the country.