[Read: Trudeau’s Ex-Attorney General: ‘Veiled Threats’ Were Made to Drop Case]

It’s risky to predict how this will all play out, both in the short term and for October’s federal election. That’s in part because those outcomes will likely be affected by a series of investigations, both active and proposed, into the actions of the prime minister and his aides.

Here’s a look at who’s seeking answers, what they could uncover, and who else might still take a peek:

What’s Already Underway

• Parliamentary hearings: The House of Commons’ Standing Committee on Justice is where Ms. Wilson-Raybould finally broke her silence this week. It’s also where other key players are set to appear, notably Gerald Butts, Mr. Trudeau’s friend who stepped down last month as his top political adviser amid the scandal.

But the justice committee isn’t set up to run a full-scale investigation. It has neither a team of people digging up evidence, nor the power to order up internal government documents.

And, as the opposition has repeatedly pointed out this week, the Liberals control the committee. This makes it unlikely that anything the panel does will inflict much harm on Mr. Trudeau.