Occurs when a voter must be registered with a party prior to voting in that party’s election.

 Registration occurs when a voter must be registered with a party prior to voting in that party’s election.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.

Abortion would be the most interesting topic to me