Democratic Minnesota Gov. Tim Walz’s claim that Republican Ohio Sen. J.D. Vance never supported a pro-worker bill has been dubbed false by a Washington Post fact check. “He’s one of four senators, four, that has never cast a vote on a pro-worker bill in his life,” Walz said of Vance during a Tuesday speech in Los Angeles. “Not once.” When asked to support the claim, the Harris-Walz campaign cited a scorecard published by the AFL-CIO — the U.S’s largest federation of unions — that assesses lawmakers’ voting records on bills and appointments the AFL-CIO decides are “key” for working people, acco…