Andrew is under pressure to resign as a British trade envoy because of awkward associations with Libyan leader's son Seif al-Islam Gadhafi and billionaire U.S. sex offender Jeffrey Epstein.
The government says it won't fire him from his unpaid position, and his royal status means there is little they can do.
Politicians have learned to tolerate royal embarrassments, from gaffes by the queen's husband Prince Philip to Prince Harry's appearance at a 2005 costume party dressed as a Nazi.
Constitutional historian Vernon Bogdanor said Tuesday that Andrew deserves a second chance, noting the royals "put in a lot of hours" in return for their privileges.