I am a MN resident, but I receive a pension from the state of CA. Will I owe CA state tax?

The federal government has passed laws which do not allow the state (which was the source of the pension) to tax pensions when the pensioner has moved out of the state. This is applicable to all states in the Union.

For example: You earned your pension when you lived and worked in CA. If you retired in CA then this pension would be taxable to CA while you lived in CA. You have  moved to another state and become a resident of that new state. You owe taxes on your pension according to the laws of your new resident state. No taxes are due to CA under these circumstances.