I think Trudeau just bonded with Jagmeet Singh. Normally, after the vote,

leaders speak in increasing order of the magnitude of the number of seats they won. They wait their turns. NDP Jagmeet Singh gave a long speech. Andrew Scheer, because he is an idiot and Conservative and probably angry he lost, walked through the crowd and up to the podium and started to speak long before Singh was finished. That never happens. The networks had to follow Scheer. I was pissed off. 2 minutes later Trudeau walks through the crowd steps up to the podium and gives his speech. Scheer got only 2 minutes. And then the networks had to cover Justin. Well played Justin. All three are still speaking at the same time. But i bet the NDP Liberal relationship got off on the right foot.