Beto O'Rourke has announced that he is dropping out of the presidential primary for 2020, citing a lack of "means to move forward successfully."

From his email to supporters:

Our campaign has been about seeing clearly, speaking honestly and acting decisively in the best interests of America.

Though it is difficult to accept, it is clear to me now that this campaign does not have the means to move forward successfully. My service to the country will not be as a candidate or as the nominee. Acknowledging this now is in the best interests of those in the campaign; it is in the best interests of this party as we seek to unify around a nominee; and it is in the best interests of the country.

I decided to run for President because I believed that I could help bring a divided country together in common cause to confront the greatest set of challenges we’ve ever faced. I also knew that the most fundamental of them is fear — the fear that Donald Trump wants us to feel about one another; the very real fear that too many in this country live under; and the fear we sometimes feel when it comes to doing the right thing, especially when it runs counter to what is politically convenient or popular.

I knew, and I still know, that we can reject and overcome these fears and choose to instead be defined by our ambitions and our ability to achieve them.

I knew that we would have to be unafraid in how we ran the campaign. We’d have to run with nothing to lose. And I knew that our success would depend not on PACs or corporations but upon the grassroots volunteers and supporters from everywhere, especially from those places that had been overlooked or taken for granted.

It's a good decision. It's time for others to make the same one.