He replaces Andrew MacDougall, who held the position for more than two years and announced his decision to leave the post last month. MacDougall tweeted news of MacDonald's posting Thursday morning.
MacDonald is a former chief of staff at CBC Television and ran for the Ontario Progressive Conservatives in Ottawa in the 2011 provincial election. He has also served as vice president, corporate and public affairs, at Veritas Communications, a public relations agency headquartered in Toronto.
More to come