A confidence vote is a parliamentary procedure where the government's legitimacy is put to a vote. If the government fails to secure a majority, it may be forced to resign, potentially leading to new elections. Portugal's minority government is facing such a vote due to a scandal involving the Prime Minister's family. - Prime Minister Luís Montenegro has proposed a confidence vote in his year-old minority government. - The confidence vote is triggered by allegations of impropriety involving a consultancy firm owned by Montenegro's family. - Opposition parties have vowed to reject the confidence motion, increasing the likelihood of the government's dismissal. - Failure to win the confidence vote could lead to a third early election in Portugal since 2022. - The parliamentary vote is expected to take place next Tuesday.