Wilders' PVV party has shared the status of largest party in parliament with the left-liberal D66 since the election in October. However, now seven of its members are defecting, quickly moving the PVV down to fourth place.
The defectors have demanded an investigation into the election campaign and are critical of how Wilders leads the party - in which he is the only formal member.
Whether the defectors will join other parties or start something of their own is still unclear.
If a new party wants to cooperate constructively, it opens up possibilities, says D66 leader Rob Jetten, who is expected to soon take office as prime minister in a minority government, according to the newspaper De Telegraaf.
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