"A Day Unlike Any Other" and superpowers that occur during the Cleanup and Power phases

[rumckle]

Does Capitan America's (Steve Rogers) leadership, a day unlike any other, work on superpowers that occur during the Cleanup or Power phases?

For example, could I use the leadership to reduce the cost of Black Widow's Interrogate superpower that occurs "At the start of the Cleanup Phase" ?

[Negoldar]

It does not. It only affects superpowers used during turns which only occur during the Activation Phase.