OTTAWA - Newly released documents show Canadians have been urging Prime Minister Justin Trudeau to hold a referendum on electoral reform.

In nearly 200 pages of messages to the prime minister, some staunch Liberal supporters even say they're prepared to reconsider their allegiance over the handling of the electoral reform file.

The messages, obtained by The Canadian Press under the Access to Information Act, date back to May, when the government gave Liberals a majority on the Commons electoral reform committee -- a move they eventually reversed after a public outcry.

The majority of letter writers express a desire for proportional representation to replace the current first-past-the-post system, and only a few said no to a referendum.

Several also asked Trudeau to heed the recommendations of the electoral reform committee when it delivered its final report, which happened Thursday.

Democratic Institutions Minister Maryam Monsef blasted the report, which recommended the government design a new proportional voting system and hold a referendum to gauge public support for it.