States with most spending on Supreme Court races

Rank State Outside expenditure
1 Florida $3.3 million
2 North Carolina $2.6 million
3 Michigan $1.6 million
4 Ohio $1.2 million
5 Iowa $833,087
6 Wisconsin $819,174
7 Mississippi $638,077
8 Louisiana $560,910
9 Oklahoma $159,969
10 Montana $41,865

Source/Methodology: Center for Public Integrity analysis and Michigan Campaign Finance Network