Retired investment executive Rex Sinquefield has given an additional $1.5 million to a political group that has backed efforts to cut Missouri's income tax.
Grow Missouri Treasurer Aaron Willard says the latest donation from Sinquefield will help the group develop a new round of issues to support now that the Republican-led Legislature has enacted an income tax cut.
Sinquefield contributed about $1.8 million to Grow Missouri last year.
Willard says Grow Missouri may help support a Sinquefield-backed ballot measure limiting teacher tenure and basing teacher employment on student achievement.
He says the group may also support a ballot measure establishing a right to farm, as well as future issues focused on making government more efficient and improving the state's economy.