Top House Republicans on Wednesday sent criminal referrals to the Justice Department recommending President Joe Biden’s son Hunter Biden and brother James Biden be charged with making false statements to Congress.

The letter from the three GOP committee chairmen to Attorney General Merrick Garland and special counsel David Weiss comes as Hunter Biden is standing trial on unrelated gun charges brought by Weiss in federal court in Delaware. The trial began Monday.

The referrals also come less than a week after former President Donald Trump, the presumptive Republican presidential nominee, was convicted by a jury in New York on felony charges of falsifying business records.

The letter by House Oversight Chair James Comer, R-Ky.; Judiciary Chair Jim Jordan, R-Ohio; and Ways and Means Chair Jason Smith, R-Mo., accused Hunter and James Biden of having “made provably false statements to the Oversight Committee and the Judiciary Committee about key aspects of the impeachment inquiry, in what appears to be a conscious effort to hinder the investigation’s focus on President Joe Biden.”