Donald Trump is a republican born in Queens, New York June 14, 1946. He has worked in politics for 33 years, has tried to run for president several times, and won the presidency in 2016.
Bernie Sanders is a Democrat born in Brooklyn, New York September 8, 1941. He has been working in politics for 49 years, has been mayor of Burlington for 8 years, was in The House of Representatives for 16 years, and he is in the US Senate. He ran for president 2016, and is running again in 2020.
Andrew Yang is a Democrat born in Schenectady, New York January 13, 1975. In 2011, he started a nonprofit, Venture for America, focused at creating opportunities in cities by "equipping (entrepreneurs) them with the skills and resources they need to create jobs" He is running for 2020 president.