Marjorie Taylor Greene is currently floating the idea of issuing a motion to vacate the Speakership of Mike Johnson in the House of Representatives in US Congress. This would be the second such motion in roughly 6 months, after former Speaker Kevin McCarthy was ousted last year.

I only have a passing familiarity with US politics, but it appears to me like regardless of whether House Democrats vote in favor or against vacating Mike Johnson's speakership, they can spin it as a political win regardless. If they vote in favor, they show that Republicans are unable to govern, that the Republican party has succumbed yet again to infighting, and there might even be Republican Representatives who are fed up with this situation and resign in disgust over how their party is internally divided, giving Democrats a chance to win the house. On the other hand, if they vote against vacating the chair, they show that they're willing to put country before politics, they humiliate Marjorie Taylor-Greene, and it would be a bargaining chip with Mike Johnson regarding other important legislation.

As I said, I'm not that familiar with US Congress and the politics involved, so I might be mistaken in some aspects of this. What political motives could impact the decision that Democrats make?