Conservative Leader Andrew Scheer says that Elections Canada issued a ruling in support of the party’s advertising practices, but the elections watchdog is contradicting that claim.The agency said it simply provided guidance to the Conservatives in an e-mail this week, including a suggestion that the party should consider how the public might perceive its advertising decisions.The Conservative Leader made the comment Wednesday as he defended the fact that his party and the Canadian Association of Petroleum Producers have both awarded campaign advertising contracts to an ad firm co-founded by Mr. Scheer’s campaign manager, Hamish Marshall.