Democratic Sen. Elizabeth Warren is on a publicity tour for her new campaign-style book, "A Fighting Chance." As she talks to the press, Warren is repeating previous statements that she will not run for president in 2016. But her denials aren't really denials, and her party's unique presidential circumstances give Warren plenty of room to run.
First, the non-denial denials. Recently ABC's David Muir asked Warren, "Are you going to run for president?" Warren's response was, "I'm not running for president."
That's the oldest lawyerly evasion in the book. Warren, a former law professor, did not say, "I am not going to run for president." Instead, she said she is "not running," which could, in some sense, be true when she spoke the words but no longer true by, say, later this year.
Muir also asked Warren about the dominant frontrunner in the Democratic race. "Do you think Hillary Clinton would make a good president?"
"I think Hillary Clinton is terrific," Warren said, which in no way answered the question.
The bottom line is Warren's statements are entirely consistent with someone who is planning to announce a presidential candidacy. Maybe she will, maybe she won't.
So here are five reasons -- there are probably more -- why Warren should make a 2016 run for the White House.
1. Life is unpredictable. Clinton will be 69 on Inauguration Day 2017, nearly the oldest president ever. She has had a few health scares. By all accounts, she left her previous four-year stint in government service exhausted. She might not run, and the Democrat in second place in the polls, Vice President Joe Biden -- 74 on Inauguration Day -- is too old to be president.
2. Parties need competition. The primary process isn't just to allow voters to pick a nominee. It's for the candidates to become better candidates. The rigors of campaigning, the day-to-day jostle with competitors and the stress of high-profile debates all make candidates better.
3. The left wants a hero. Clinton has never really excited the most liberal wing of the Democratic Party. They see her as an overcautious centrist like her husband. Warren, on the other hand, has thrilled the left with her attacks on inequality, plutocrats and big financial institutions.
4. Hillary ran a dumb campaign in 2008 and might do so again. Rival Barack Obama exploited that weakness brilliantly. For example, Obama collected more net delegates by winning the Idaho caucuses, with 21,000 participants, than Clinton did by winning the New Jersey primary, with more than 1 million voters.
5. One more time: Life is unpredictable. This is Warren's only chance to run. She will be 67 on Inauguration Day 2017. A run in 2020 or later is out of the question.
Yes, Warren is far back in the polls, but so was Obama in 2007. At some point, Democrats are going to realize the precariousness of their unthinking devotion to a single, flawed candidate. Elizabeth Warren could remind them there's someone else to vote for.
Byron York is chief political correspondent for The Washington Examiner.