Ontario Premier Dalton McGuinty says there is no contradiction between his government trying to ban ads that attack his policies while allowing those that criticize his opponents.
Mr. McGuinty's Liberals are looking into whether ads that say the province is wasting billions of dollars on a "road to nowhere" in Windsor are illegal.
The Canadian Transit Company, the Canadian wing of a company that owns the competing Ambassador Bridge that joins Windsor and Detroit, bought the ads claiming that a new bridge will likely never be built and the road is therefore a waste of money.
Finance Minister Dwight Duncan says he'd like to know whether they break rules that say foreign money can't be used to buy and air campaign advertising.
The provincial Progressive Conservatives have made similar complaints about another organization that is going to start airing new ads attacking their party this week, saying that the group Working Families is just a front for the Liberals.
Mr. McGuinty says the Tories have used the law to complain about Working Families before and it is his government's right to make similar complaints about other advertising.