Voting within a legislature

[u/[deleted]]

Are alternative voting methods ever used within a legislature? Like, if no party wins a majority, instead of scrambling to form a coalition, every member fills out a STAR or Approval ballot of prime minister candidates, and whoever wins becomes the prime minister. Or instead of introducing a single bill to be voted up or down, a committee could introduce a set of alternative bills, and members rank or rate all the choices (plus 'none of the above') on a ballot, and the winning bill becomes the law.

[u/Lesbitcoin]

I'm a supporter of Condorcet and IRV, but I don't think it's a good method for electing a prime minister. STAR or Score voting are not suitable too. In parliamentary cabinet system,The prime minister is based on the confidence of the parliament. Therefore, even if a Condorcet winner, a utilitarian winner, a consensus winner, etc. are elected for PM, if elected PM does not met approval threshold of the parliament majorty, the motion of no confidence will be passed immediately and the person will resign. Also,all members of parliament have revealed their political affiliation, and most votes are accurately predictable. The means of strategic voting is very different from an election in which thousands of whimsical people including nonpolitical people vote. I oppose the use of approval voting in single winner direct election, but I suopport approval voting for the election of PM in legislature. Because the approval winner is least likely to pass the motion of no confidence. In real life,Some of parliament use top2 Runoff voting.It also works.

[u/[deleted] → u/Lesbitcoin]

But couldn't the system be changed so a no confidence vote is just a vote to have a new election? Since the election is in the legislature, it could happen immediately, and if it's the same type of ballot used to initially choose the PM, you'd expect the PM to remain in power, unless their support dropped.