WASHINGTON — Senate Judiciary Chairman Lindsey Graham said the Justice Department should appoint a special counsel to investigate Hunter Biden, the son of President-elect Joe Biden, for his business dealings in Ukraine and China.

Graham said he hadn’t spoken to President Donald Trump about a Hunter Biden special counsel, but said it would be “a good idea” to name one.

“If you believe a special counsel was needed to look at the Trump world regarding Russia, how can you say there’s no need for a special counsel regarding Hunter Biden?” he told reporters.

Attorney General William Barr has announced he will be leaving his post Dec. 23, with his deputy, Jeffrey Rosen, taking over as the acting attorney general. Barr has already tapped prosecutor John Durham as a special counsel in his investigation of officials who conducted the government’s probes into Russia and Trump.

Biden’s transition team announced last week that Hunter Biden was under federal criminal tax investigation. Sen. Tom Cotton and Trump have also expressed interest in a special counsel.