Former Michelle Obama Michelle LeVaughn Robinson ObamaThe Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon Michelle Obama: 'We could've never gotten away with' what the Trump White House does Obama's first presidential memoir, 'A Promised Land,' set for November release MORE aide Krishanti Vignarajah on Thursday characterized former Rep. Beto O'Rourke Beto O'RourkeJimmy Carter says his son smoked pot with Willie Nelson on White House roof O'Rourke endorses Kennedy for Senate: 'A champion for the values we're most proud of' 2020 Democrats do convention Zoom call MORE's (D-Texas) road trip across the country as a listening tour in the form of a travel blog.

"You're seeing what sure seems like a listening tour in travel blog form happening right now," Vignarajah, who served as the policy director for the former first lady, told Hill.TV's Krystal Ball and Saagar Enjeti in an appearance on "Rising."

"He's got to get serious because he is now in primetime. He's being asked the hard questions, and the scrutiny that he's going to face is one where he will wither unless he can step up," she continued.

The former Senate candidate and potential 2020 hopeful garnered attention on Wednesday after he wrote in a Medium post that he has "been stuck lately ... in and out of a funk."

"It’s been more than twenty years since I was last not working," O'Rourke wrote. "Maybe if I get moving, on the road, meet people, learn about what’s going on where they live, have some adventure, go where I don’t know and I’m not known, it’ll clear my head, reset, I’ll think new thoughts, break out of the loops I’ve been stuck in."

The Wall Street Journal reported earlier this month that O'Rourke does not have any plans to visit any of the early primary or caucus states.

The former congressman, however, has said he is in the process of deciding whether he will jump into the growing Democratic primary field.

"The reality is, it's a crowded field. He's going to have to articulate a vision of why in the world he's running, and it can't be just that his tweets catch on fire," Vignarajah said.

"I think that there is an element of inspiration, authenticity, that makes people gravitate towards him like people gravitated towards my old boss."

— Julia Manchester