This is, as so many things are today, a partisan issue. Eight in ten Democrats and six in ten independents thin the presumptive Republican nominee should release his returns, while Republicans are evenly divided.

That Republican divide masks a big difference between those who supported Trump for the nomination and those who did not. By two to one, GOP Trump supporters don’t think the businessman should release his returns; by five to three, those who favored other Republican candidates think he should.

That partisan difference also extends to the general question about the importance of presidential candidate releasing their tax returns. Half of Democrats say it’s very important – but just 17% of Republicans do.