The House of Commons is scheduled to reconvene Thursday afternoon for a rare public debate on a government shutdown.
Prime Minister Justin Trudeau is expected to offer no concession during the debate.
But he is expected at least to promise to bring the House back from the brink.
In the past, the Liberal Party has often been in a position of being able to negotiate a shutdown of its own, given the size of the government.
The NDP, however, has always maintained it would be a disaster for Canadians if the Liberals did not agree to the first-ever government shutdown in Canadian history.
It has called for the shutdown to be permanent and has called on the Conservatives to agree to it.
The Conservatives are also expected to announce an additional $2 billion in funding for public transit, and a tax break for small businesses.
The Liberals will likely be asked to take up a number of issues during the shutdown, including how the Conservatives are handling their debt.
Trudeau is also expected make a speech on the economy, but that speech could be delayed by the shutdown.
The House will also hear testimony from former Conservative government ministers, as well as a number that the Liberals have appointed as experts.
In addition to the two ministers who are expected to testify, two witnesses are expected who are known to be allies of the Liberals: Conservative MP Candice Bergen, who served as minister of the environment from 2012 to 2015, and former Conservative cabinet minister Julie Gelfand.
The second witness is a former federal cabinet minister named Richard Fadden, who was appointed by Harper to the National Post editorial board in 2010.
This is not the first time that the House has been asked to vote on a bill.
During the government shutdown, the House voted on several bills during the first week of May.