Quebec Liberal Leader Philippe Couillard is challenging his rivals to publicly release tax returns and asset declarations for themselves and their spouses.
Couillard said this morning he will post 2012 income-tax returns and other financial details about himself and his wife on the Liberal party's website before Thursday's leaders' debate.
But Parti Quebecois Leader Pauline Marois says she won't follow suit, arguing the provincial ethics commissioner is "very satisfied" with the financial documentation she has already provided.
Couillard says voters have the right to know about the financial situation of the four main leaders and their partners before the April 7 election.
His comments come as a new Internet poll suggests his party had the support of 40 per cent of voters, compared with 33 per cent for the incumbent Parti Quebecois.
The Leger Marketing survey of 3,692 Quebecers was conducted March 21-23 for Le Journal de Montreal and is considered accurate within 1.9 percentage points, 19 times out of 20.