“I’m lending my support to Andrew in Iowa, hopefully to help him get past the early primaries & remind us not to take ourselves too seriously,” she announced. “We need to lighten up on a personal level, because the moment is so serious on a political level. Otherwise the months ahead will be too tough on all of us.”

Williamson exited the Democratic primary several weeks ago, after becoming, along with Yang, one of the two unlikely outsiders to make the first debate stages last year. Her off-beat campaign vaulted her to viral status before she started fizzling earlier in the fall.

But she warned that her support of Yang was not an outright endorsement. "At this point I’m not endorsing anyone," she wrote, clarifying that what she's focused on advocating for now "are issues; and the most important one now is a psychological issue."

In a tweet Thursday she sought to clarify further, noting that while she supports "all progressive candidates," she would be campaigning with Yang in Iowa primarily "because I know the institutional obstructions to his candidacy and I want to see him continue in the race past Iowa."

And while she compared Yang to a "tuning fork" — "realigning us with something we need to retrieve, taking us back to a more innocent time, making us remember to chuckle" — she added that the entrepreneur is also "deep in substance."

The pair have kept up a friendly rapport throughout the primary, both running unconventional campaigns with Yang's promise of a universal basic income and Williamson touting a "politics of love" and boosting each other when they were on the bubble of qualifying for debates.

In a tweet Thursday, Yang thanked Williamson for her support, calling her "phenomenal" and saying he'd "see you tomorrow!"

While Yang has a vocal and loyal online following, his polling has stagnated in recent months and he did not qualify for the debate stage for the first time earlier this month. Recent polling in the first-in-the-nation caucus and primary states of Iowa and New Hampshire respectively has indicated that the first nominating contests of the cycle could be anyone’s game among Sanders, Warren, Joe Biden and Pete Buttigieg.

Williamson indicated that she was commiserating with the sentiments behind such a fluid race, writing that "I have deep respect for the millions of people who are currently reflecting on how they’ll vote or caucus in the weeks ahead" and that in a field of "good, solid" candidates, picking one would be "difficult."