OTTAWA 鈥 Liberal Minister Melanie Joly is the latest MP to add her name to a growing list of party supporters who are pointing to the House of Commons as the place for former ministers Jody Wilson-Raybould and Jane Philpott to air any outstanding information they want to share in the SNC-Lavalin controversy.

In an interview on CTV鈥檚 Question Period that will air on Sunday, the Quebec MP said that if her former cabinet colleagues -- both of which resigned amid the scandal -- want to speak, they have a venue to do so.

鈥淭hey can clearly speak, they can use their own parliamentary privilege to go before Parliament and speak,鈥 Joly, who is a lawyer, said.

Calls have increased in the last week for the pair to use the Commons to speak to the events surrounding alleged months-long pressure on then-attorney general Wilson-Raybould to seek a remediation agreement instead of criminal charges in a corruption case against the Quebec engineering and construction firm over business dealings in Libya.

That鈥檚 because both Philpott and Wilson-Raybould have issued comments indicating they want to, or will be elaborating on the affair that has now dominated headlines for more than a month and a half.

In an interview with Maclean鈥檚 magazine that was published on Thursday, Philpott said that that there is 鈥渕uch more to the story that needs to be told.鈥

Philpott, who shortly followed Wilson-Raybould out the cabinet doors, citing a loss of confidence in the way the government is handling the scandal, said in the interview that she believes Prime Minister Justin Trudeau and his top staffers have been trying to 鈥渟hut down鈥 the story.

Then, in a letter to the House Justice Committee, Wilson-Raybould said that she will provide additional evidence and a written statement on the SNC-Lavalin affair, after her request to testify again was rejected by the Liberal majority on the committee. She wrote that this new information she will provide will still be within the 鈥渃onfines of the waiver of cabinet confidence and solicitor-client privilege.鈥

Joly, who is a lawyer, said that if both want to 鈥渢ell more,鈥 they 鈥渃learly鈥 can speak because the protections of parliamentary privilege would apply, but they also have other options -- as Liberal MP Judy Sgro put it -- to 鈥渃lear the air.鈥

鈥淭hey have the opportunity, three ways: Before Parliament; through the ethics commissioner; and if the parliamentary committee on justice wants to continue to study this issue, it鈥檚 up to them to decide,鈥 Joly said.

It鈥檚 unlikely that the committee probe will be revived, and the ethics probe is largely a closed-door avenue.

Liberal MP Marco Mendicino, who was also on Question Period, said that Philpott and Wilson-Raybould would have 鈥渋mmunity鈥 if they stepped into the Commons citing various procedural experts and legal scholars.

In the Maclean鈥檚 interview, Philpott was asked about the prospect of using the protections MPs have when speaking in the House of Commons to say what she thinks needs saying. She said she would 鈥減refer to err on the side of caution in terms of the very serious oaths that I made when I became a cabinet minister to respect confidentiality.鈥

Similarly, Wilson-Raybould -- who over a month ago first stood in the House and implored that she be allowed to 鈥渟peak my truth鈥 -- told the committee that the unprecedented waiver that Prime Minister Justin Trudeau issued still limited her. In that waiver, Trudeau relinquished solicitor-client privileges and cabinet confidences so that she and anyone who participated in discussions with her could 鈥渁ddress relevant matters.鈥

Trudeau has been consistently citing the waiver and the hours of testimony as evidence that Wilson-Raybould has already been able to speak 鈥渆ntirely and completely鈥 about her experience on the SNC-Lavalin file when she was justice minister.

鈥淭his is something that we have taken very seriously as a government and will continue to take seriously, but there has been a full airing,鈥 Trudeau said on Friday.

They鈥檇 鈥榯ake all the risk鈥: Raitt

Rebuffing the idea in a separate interview on CTV鈥檚 Question Period, Conservative Deputy Leader Lisa Raitt said that all of the legal voices opining on whether or not parliamentary privilege is an adequate protection can鈥檛 hold a candle to the legal advice these two are likely receiving. In the early days of the scandal, Wilson-Raybould retained former Supreme Court judge Thomas Cromwell to provide legal guidance.

She said that those suggesting all they need to do is walk into the House are putting 鈥渁ll the risk鈥 on their shoulders and not where it should be: on Trudeau.

鈥淭hey鈥檙e the ones that are going to have to make sure that they鈥檙e not going to get sued or disbarred or looked down upon because they broke an oath that they made鈥 they鈥檙e going to take all that risk, whereas the one guy who can just say, 鈥榊ou can speak about anything you want, lets clear the air,鈥 refuses to do so, and it鈥檚 their fault?鈥 Raitt said.

The opposition has used several procedural mechanisms to try to push Trudeau to waive all possible confidences, including a more-than-30-hour vote marathon, to no avail.

鈥淟et鈥檚 just rip the Band-Aid off, let鈥檚 get this done, bring them in, have a conversation, lift the waivers, relieve them of their oaths, get it done,鈥 Raitt said.

Former NDP Leader Tom Mulcair said on the show that he thinks eventually Trudeau won鈥檛 have a choice but to 鈥渓ift the veil,鈥 with pressure of the story expected to keep up.

鈥楶olitics is a team sport鈥

Aside from the slow drip of news on the SNC-Lavalin story is the question of whether or not Wilson-Raybould and Philpott will, or should, remain members of the Liberal caucus.

Trudeau has deferred on this question, saying it鈥檚 a decision that is up to them, but now some think it should be put to a vote in caucus.

On Wednesday, Liberal MP Celina Caesar-Chavannes removed herself from the caucus, saying that she no longer wanted to be a distraction, after she accused Trudeau of acting with 鈥渉ostility鈥 towards her when she said she wouldn鈥檛 be running again.

Asked whether Philpott and Wilson-Raybould should stay in caucus, Joly said 鈥減olitics is a team sport, and in a team not everybody agrees鈥 but at the end of the day what鈥榮 the most important is team spirit and if they decide not to want to play in a team, it鈥檚 up to them to decide.鈥

鈥淭hey know that they have to make a choice,鈥 Joly said.