OTTAWA — Disgruntled Liberal MPs will finally get a chance to express their ire on Wednesday as the party’s caucus meets for the first time since a new effort to oust Prime Minister Justin Trudeau broke into public view.

Dozens of MPs have signed a letter asking the prime minister to step down for the good of the country. But, at a cabinet meeting on Parliament Hill on Tuesday, Liberals affirmed their support for Trudeau. It might be a different story when the whole caucus gathers on Wednesday.