Part of a series on the Senate (Eerste kamer) elections in the Netherlands.

The Netherlands has a bicameral parliamentary system with a House of Representatives (Tweede Kamer) and a Senate (Eerste Kamer). The Senate is made up of 75 members who are elected indirectly by the members of the Provincial Councils, which are elected directly by Dutch citizens.

The Senate elections in the Netherlands are two-staged, which makes predictions more difficult. During the first stage, the Provincial Councils are elected, and during the second stage, these councils then vote for members of the Senate. This means that it is difficult to predict the outcome of the Senate elections as it depends on the outcome of the Provincial Council elections.

The PVDA and GroenLinks will be joining as a united fraction after the race, so the combined seat count will determine the outcome.

Initial values are set to the results of the most recent (Feb 14) poll by Eenvandaag[1]. Other valuable sources include polls by Maurice de Hond[2] and the aggregate polling website Peilingwijzer[3].

Note that this question closes the day before the Provinical Council elections, but the outcome will be determined after the Senate elections on may 30th. [4]

[1] https://eenvandaag.avrotros.nl/peilingtrends/politiek/zetelpeiling-eerste-kamer/

[2] https://peilingen.maurice.nl/

[3] https://peilingwijzer.tomlouwerse.nl/

[4] https://www.eerstekamer.nl/begrip/eerste_kamerverkiezingen