The Lousiana Purchase
nearly tripled the size fo the united states.
improved relations between the united states and britain.
set the border between the united states and canada at the forth-ninth parallel.
nearly doubled the size of the united states.

nearly doubled the size of the united states.

harding's opponent in the 1920 election was ohio governor and newspaperman james m. cox, who had won the democratic nomination in a 44-ballot convention battle. harding rejected the progressive ideology of the wilson administration in favor of the laissez-faire approach of the mckinley administration.