It did change for the better. When Themistocles managed to beat the Persians, he got huge support from the lower-class people who saw that he could defend them in case of an invasion. He used this to get more power and this resulted with them getting the feeling of being more free and the democratic society prospered.
They led revolutions in favor of affecting the spanish regime/they didnt like it
This usually happens through the party's primaries and caucuses. It's then confirmed through a vote of the delegates at the national convention. But if no candidate gets the majority of a party's delegates during the primaries and caucuses, convention delegates choose the nominee.
