If we still ran the USA the way they did in the 1790s, Donald Trump would be on his way to becoming our Vice President.
Up until 1800, that position was filled by whoever came in second in the presidential election. So, John Adams served under George Washington. Next, Thomas Jefferson was veep for Adams. Then, Aaron Burr was second-banana to Jefferson. After that, the parties ran candidates for both offices together and the tradition was changed.
But if it hadn't been, can you imagine Trump agreeing to be VP for Hillary Clinton?