If Justin Trudeau as for some reason to leave politics within the next 2 to 4 years, Chrystia Freeland and Mark Carney would each be the prime contenders for Federal Liberal Party leadership.

Unlike in the post-Martin/Chrétien decade, the Liberals have 2 very credible and obvious prospects should the need arise. We now forget how close the Liberal Party came close to implosion during that decade.