Nationals’ leader David Littleproud is set to face a leadership challenge on Monday, with Queensland MP Colin Boyce announcing a spill motion, stating the National party is committing "political suicide" by splitting from the Coalition.

Meanwhile, inflation figures for December landing at a much higher than expected 3.8 per cent. The figure raises the likelihood of a rate hike when the RBA meets next week and adds to the cost-of-living challenge facing the Albanese government.

Patricia Karvelas and David Speers break it all down on Politics Now.

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