The most notable attempts of the previous NDP caucus were in Motions 76 and Motions 86.

Motion 76, by Green MP Mike Morrice: https://www.ourcommons.ca/Members/en/mike-morrice(110476)/motions/12180488 This one didn't come to a vote.

Motion 86, by NDP MP Lisa Marie Barron: https://www.ourcommons.ca/members/en/111023/motions/12517157 This one did come to a vote, but was Negatived (101 Yea / 220 Nay) by the usual suspects.

• LPC: 39 Yea / 108 Nay
• CPC: 3 Yea / 112 Nay
• BQ: 30 Yea / 0 Nay
• NDP: 24 Yea / 0 Nay
• Independent: 3 Yea / 0 Nay
• Green: 2 Yea / 0 Nay

Unfortunately, both Mike Morrice and Lisa Marie Barron lost their seats in the last election to members of the conservative party due to vote splitting.