Welsh Liberal Democrats say they'd want more money spent on schools before they'd back Labour's budget. The spending plans are published later but the Welsh Government doesn't have a majority in the Senedd and needs the votes of another party to get its budget through.
There are more details of the Lib Dem demands here. I asked the party's Welsh leader Kirsty Williams if she's holding out for a continuation of the deal she struck last year or an increase in the amount of money ploughed into schools.
The Welsh Government has outlined how it plans to spend more than £15 billion next year
The Finance Minister, Jane Hutt, unveils her draft Budget at 3pm but weeks of talks lie ahead to get a Senedd majority for her plans.