If I'm the president of the United States, I won't have any need for bribes because former presidents can make a ton of money by selling books, giving lectures, and things like that. A million dollars is not that difficult for a former president to make completely legally, so it will not be life-changing at all. And any amount of money that is significantly larger won't matter anyway, because once you pass the 5-10 million dollars mark, your quality of life won't change much anyway. This is why I would easily turn down even a billion dollar bribe without hesitation.

Even if I were the type of person who doesn't care for ethics and morals, accepting a bribe would be unnecessary and risky.

And for the people saying that this money can do a lot of good, the president of the US has a lot more resources to manipulate to make this bribe a drop in the bucket.