Trump was the Republican nominee for President of the United States in the 2016 election, having won the most state primaries, caucuses, and delegates at the 2016 Republican National Convention.[8] He chose Mike Pence, the sitting Governor of Indiana, as his vice presidential running mate.
The core of Darwin's theory is natural selection, a process that occurs over successive generations and is defined as the differential reproduction of genotypes. Natural selection requires heritable variation in a given trait, and differential survival and reproduction associated with possession of that trait.
The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.