Gov. Tim Walz (D-MN) has long described the moment in 2004 that inspired him to run for public office. In Walz’s telling, the “folksy” high school teacher and two of his students attended a campaign rally for President George W. Bush as an educational experience. However, Walz says, all three of them were denied entry upon event staffers noticing a John Kerry sticker on one of the students’ wallets — an exchange that the Atlantic dubbed a “KGB-style interrogation.”

There’s just one problem: This version of the political origin story for the Democratic vice presidential nominee, who is already facing “stolen valor” accusations over claims about his military service from combat veterans, contains significant inaccuracies.