Jimmie Åkesson's statement on Friday means that the Sweden Democrats (SD) could allow, or tolerate, a four-party government consisting of M, KD, L and C.
SD would then go into “full opposition”.
The question is whether the Centre Party (C) can imagine sitting in such a minority government, which would have to seek support in the Riksdag on various issues - not least the state budget.
This makes things easier for Kristersson, but a Kristersson government still seems remote given how firmly C has distanced itself from SD, says Tommy Möller, professor of political science at Stockholm University.
C has red lines against both V and SD - it cannot imagine letting either party into a government.
However, its red line is sharpest against SD because C does not want to give the party any influence. V can talk to SD.
Åkesson's statement also increases the pressure on the Social Democrats to get the Left Party to abandon its demand for ministerial posts, Tommy Möller believes.
Only S can make V back down. If the Green Party abandons its demand for ministerial posts, that would make it easier. A purely S government is the only way for C to avoid a debate about betrayal.
Möller has difficulty assessing how likely, or unlikely, it is that C will still switch sides and support a right-wing government.
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