The Brazilian consulate in Lisbon said voters can present a Portuguese ID card at the ballot box if they lack a Brazilian document
One source
What the source said
Público
“eleitores poderão apresentar cartão de identificação português na hora da votação”
Machine translation: Voters may present a Portuguese identification card at the time of voting.
Read at PúblicoReported by one source so far. It is confirmed when a second, independent source reports the same thing.