Ohio Sen. JD Vance slammed the timing of Minnesota Gov. Tim Walz’s retirement from a more-than-two-decades-long military career as a means of avoiding a deployment to Iraq on Wednesday, calling it “stolen valor garbage” and testing a new line of attack on the newly minted Democratic vice presidential contender.

There is no evidence that Walz retired to avoid a wartime deployment, and it’s a move that may not work — Walz has faced similar attacks from opponents before during successful races for Congress and governor, in which he explained his Army record in detail but did not make it a central part of his campaign.

The attacks are reminiscent of the 2004 campaign to discredit the distinguished war record of Democratic presidential nominee John Kerry, who served in Vietnam and later criticized the war — an effort led by Chris LaCivita, now a senior adviser to the Trump campaign.

What remains to be seen is if the tactic will be as successful 20 years later, when the Republican presidential nominee evaded military service, and Vance, despite his deployment to Iraq, has no combat experience either.