From the introduction:
Two years ago, Republicans and Democrats had similar views of the fairness of the tax system. Today, 64% of Republicans and Republican-leaning independents say the present tax system is very or moderately fair; just half as many Democrats and Democratic leaners (32%) view the tax system as fair. The share of Republicans who say the tax system is fair has increased 21 percentage points since 2017. Over this period, the share of Democrats viewing the tax system as fair has declined nine points.
Overall views of tax law little changed; fewer Republicans ‘strongly approve’ The survey by Pew Research Center, conducted March 20-25 among 1,503 adults, finds that more than a year after the new tax law was enacted, public approval remains relatively unchanged (36% approve of the tax law, while 49% disapprove). However, fewer Republicans strongly approve of the law than did so in January 2018.