The Commission needs to be voted in by the European Parliament. They can't propose a Commission on their own (only the Council can do so which consists of the h

The Commission needs to be voted in by the European Parliament. They can't propose a Commission on their own (only the Council can do so which consists of the head of states or governments). However, the parliament can vote against the proposal and forced candidates out in the past. It's actually not too different from how governments are elected in many countries.