Gov. Phil Murphy has rejected a measure that would have required certain independent expenditure committees to disclose their donors.

The legislation required groups to disclose all spending over $3,000, up from $1,600, and also said contributors giving over $10,000 must be disclosed.

Murphy said Monday that because the measure applied to groups influencing legislation and regulations, it could go beyond the scope of disclosure allowed under the U.S. Constitution.

The governor also says those who receive tax credits over $25,000 should be required to disclose donors, and any entity with $17,500 or more in contracts with a public body should disclose all contributions to outside advisory groups.

The bill's Democratic sponsors said they were disappointed but didn't say whether they would try to override the veto.