Andy Kim, a Democrat who has never held political office before,... has defeated two-term Republican Representative Tom MacArthur in New Jersey’s 3rd Congressional District. <br /> He will become the first Korean-American to ever represent New Jersey in Congress when he's swore in in January.<br />He will also be the first Korean-American to serve in Congress in two decades. <br />Kim was a national security official during the former Obama administration after earning a PhD in international relations at Oxford University. <br />