Two dozen Republicans are demanding President Joe Biden’s nominee to lead the Bureau of Alcohol, Tobacco, Firearms and Explosives publicly commit to investigate allegations his son Hunter lied on a background check for a gun.

In the letter, signed by 24 Republican lawmakers, Congressman Bob Good urged David Chipman not to curb his “zeal” for enforcing firearm regulations depending on whether an offender is “well-connected”.

“I write to ask that you publicly commit to investigate allegations that Hunter Biden falsified information during a background check in order to illegally obtain a firearm should you be confirmed by the US Senate as the Director of the Bureau of Alcohol, Tobacco, Firearms and Explosives,” the letter said.

A media release for the letter said “no one is above the law”.

“No one is beyond reproach, even President Biden’s son,” Congressman Barry Moore said.