There are similar donation limits in the USA, but the recent Citizen's United supreme court ruling allows individuals to give large sums to "political action co

There are similar donation limits in the USA, but the recent Citizen's United supreme court ruling allows individuals to give large sums to "political action committees" which can act in support of a candidate as long as they don't get caught directly coordinating with them. This has lead to some pretty egregious influences on politics, especially in smaller races with less scrutiny where elections can now be bought for sometimes as little as $10k.