“Portugal: Communists firmly oppose euthanasia”
(BioEdge — June 2, 2018)
The vote failed because the communist Party opposes euthanasia.

“Portugal parliament rejects legal euthanasia in divisive vote”
(Reuters — May 29, 2018)
Portugal’s parliament rejected on Tuesday a bill that would have legalized voluntary euthanasia for terminal patients in the Catholic-majority country by a narrow margin, but it secured enough support to ensure continued debate on the issue.

“Portugal considers allowing euthanasia, assisted suicide”
(ABC News — May 28, 2018)
Portuguese lawmakers will decide Tuesday on another issue that has brought a confrontation between faith and politics in this predominantly Catholic country: whether to allow euthanasia and doctor-assisted suicide.