First love is a hard thing to shake. Even after your heart has been broken, you always keep a special feeling inside for your first flame.

That's how millennials feel about Bernie Sanders. They are still unwilling to move on to Hillary Clinton, although Sanders has endorsed her and basically pleaded with young voters to support her over Jill Stein or Gary Johnson.

A Fox News poll released on Sept. 15 found that 77 percent of millennial Democrats would rather have Sanders as the Democratic nominee over Clinton. Overall, 43 percent of all Democrat voters wanted the Vermont senator over the former first lady.

Clinton is feeling the lack of support. Only 38 percent of likely Gen-Y voters said they plan to support the Democratic nominee in the fall. That's a tremendous 22-point drop from President Obama's support in 2012, and nearly 30 points less than he received in 2008.

My high school girlfriend dumped me in the last semester of my senior year. I thought about it for years, became jaded, and it probably kept me from starting another serious relationship. There's a good chance that millennials, hung up on their first love, will be unable to embrace Hillary and will give Trump the White House.