In terms of the changes that are being proposed in Bill C-38, essentially the law currently says that a charity must have charitable purposes. So they must be engaged in charitable purposes and they must use the resources they have to achieve those charitable purposes, and to the extent that they engage in political activities that are related to their charitable purposes, they can spend up to 10% of their resources. When a charity makes a gift to another charity, that is considered to be part of its charitable activities. What Bill C-38 is proposing is that when a gift is made to another charity, and a purpose of that gift was to allow the other charity to engage in political activities, then the gift would be included by the charity that makes the gift in its own political activities.
In your example of the United Way making a gift to another qualified donee or charity to engage in activities, to the extent that there's no suggestion that a purpose of the gift is political activities then there's no impact on them.