He has previously criticised many aspects of US President Donald Trump's administration, and now Axl Rose is taking aim at a member of his cabinet. The Guns N' Roses frontman launched a brief but stinging attack on Steve Mnuchin, US Secretary of the Treasury, this week. "It's official! Whatever anyone may have previously thought of Steve Mnuchin he's officially an [expletive]," the <em>Sweet Child O' Mine</em> singer posed on Twitter on Wednesday, May 6. It is not known what provoked Rose to tweet, and the singer has not since offered any context to its publication. Mnuchin, however, was quick to rebut the musician's comment, firing back: "What have you done for the country lately?" The post featured a flag emoji, however, the former investment banker got a little confused. Mnuchin, who was confirmed as Treasury Secretary in 2017, used the emoji of Liberia's flag, which, much like the emblem of the US, features red and white stripes. The West African nation's flag also has a blue square in the left-hand corner, with a single white star inside. The slip-up was quickly fixed, with Mnuchin deleting and reposting his tweet with the correct flag, but not before many keen-eyed social media users highlighted his error. Rose has not yet replied to Mnuchin, so perhaps the feud is done and dusted within two single tweets? While the singer has proffered no explanation for why he felt the need to tweet, he has previously denounced Trump for using Guns N' Roses songs during rallies and public appearances. The band's version of <em>Live and Let Die </em>has been played as part of Trump's standard campaign rally soundtrack, most recently during a visit to a Honeywell International Inc. plant earlier this week.