Why did millions of american farm families migrate westward from 1900 to 1910?

The greatest expansion of farmland in the United States occurred in the Western State and the Plain States since 1900. Irrigation and harvest of crops increased during this period. Therefore, the American farm families migrated to the Western State. 

what's the passage bud?

on 6 november american voters will elect members of the house of representatives and the senate, which together are called congress.

both houses of congress are currently controlled by the republican party, which backs president donald trump.

the democrats think they can win control of the house of representatives this year by winning a majority of seats.

doing so would let them block or delay the president’s plans by refusing to enact them.

all 435 seats in the house of representatives are up for election.

if the democrats want to take control of the house by having the most seats, they’re going to have to claim at least 23 from the republicans.

graphic: the battle for the house of representatives