Michael Ignatieff, the Liberal Party candidate in Canada's May 2 election, lags far behind in the polls. His main problem: He spent too much time south of the border.
Justin Trudeau is a political neophyte, but also a focus of hope for a party that suffered a crushing defeat in elections this week.
Premier Harper is favored in Tuesday's vote, but slipped in polls over economic woes.
The ruling Conservative Party hopes to win at least 30 more seats to secure a House of Commons majority.
Its threat to remove its troops from the south comes amid friction over bid to appoint UN 'super envoy.'