Meet Jack Rosenthal

A lifelong Coloradan, proud Democrat, and daily transit rider with deep technical expertise and a genuine commitment to public transportation.

Jack and Phil Weiser arm in arm at the Louisville Labor Day parade, with a Jack for RTD sign behind them

A track record of results for riders

I've been delivering for riders as an advocate. By organizing riders, testifying, and working with legislators and directors, I've already won changes riders see every day. Here are a few examples.

Jack testifying at a Colorado legislative committee hearing

Transit Access Bill (HB26-1269)

Transit only works if people can figure out how to use it. A first-time rider, a visitor, or someone who doesn't speak English shouldn't have to guess where a bus goes. I worked with Boulder County leaders, including State Rep. Junie Joseph, to write the Transit Access Bill and testified for it at the State Capitol.

It's now Colorado law, requiring clear system maps at major stops and stations and expanded language access statewide. I also fought for two provisions that didn't make the final bill: a Partner Pass program giving homeless and domestic violence shelters transit passes for the people they serve, and a statewide low-income fare discount. On the board, I'll bring both forward at RTD and make sure it implements the new law in full.

An RTD bus signed for the Bolder Boulder race

High Volume Event Service Pilot

Until just before the pandemic, RTD ran dedicated event service like RunRide, RockiesRide, and BroncosRide, taking riders straight to the race or the game and home again. RTD cut them all without a good reason, and now runs a reduced holiday schedule even on Memorial Day weekend, when the Bolder Boulder brings hundreds of thousands of visitors to Boulder. I pushed RTD from the start to bring them back.

That pressure worked. RTD is now planning high-volume event service again and evaluating a pilot for the 2027 Broncos season. One pilot isn't enough: on the board, I'll push to restore RunRide and RockiesRide, and to create new service for the Sundance Film Festival when it comes to Boulder.

The view through an ad wrap covering an RTD bus window

Rider-first Advertising Policy

Riders should be able to see where they're going. Ads wrapped over the windows of nearly 500 RTD buses and more than 170 rail cars blocked the view, made it harder to spot your stop, and left vehicles feeling dim and uninviting. I pushed RTD from the start to stop selling them, and RTD listened: new advertising contracts can no longer cover windows. The digital ads that used to cover schedules on public information screens are gone too.

These are small changes riders notice on every trip, and they're one example of how I think about RTD. The rider experience matters, from the view out the window to how a stop feels at night, and on the board I'll bring forward policies that put riders first.

A Save Route 228 flyer posted at a bus stop

Sounding the Alarm on Service Cuts

When RTD proposed cutting Route 228, Superior's only neighborhood bus, I built a website, posted flyers at bus stops, and rallied riders. The 228 was saved.

When plans for RTD's bus network redesign assumed cutting 20% of all service, far deeper than the $20 million in cuts the board asked for, I sounded the alarm. Then I found where the money could come from instead: RTD plans to spend $284 million on new diesel buses, even though its own records show none of its buses are past retirement age. I urged the board to audit that spending before cutting anyone's service.

I love Boulder County

I've lived in Colorado my whole life, and have called Boulder County home for nearly a decade. I grew up in Steamboat Springs, earned a Bachelor's and Master's in Computer Science at Colorado School of Mines, and spent six years as a software engineer at Google Boulder. Today I live in Louisville with my husband, Bo, and our dog, Cookie.

I ride RTD every day: to work, to get groceries, and to see friends and family. I even met Bo on the BOUND (some might say it was bound to be). As both a daily rider and an engineer, I started building tools to help make RTD better for everyone who relies on it.

Jack and his husband Bo holding hands in front of fall leavesCookie, Jack's dog, wading in a creek and looking back at the camera

Transit software background

Real-time tracking software I built monitors every RTD bus and train and identifies routes running ahead of or behind schedule. A bus that runs early leaves riders behind at the stop, and one that runs late causes them to miss their connection.

This data informs my advocacy today. On the board, I'll bring the same approach to every decision, using data to find problems, guide fixes, and measure the results.

Proud Democrat

Data shows me where RTD is falling short. My values tell me who it has to serve. RTD Board races don't list party on the ballot, so I want to be clear: I'm a proud Democrat.

Transit puts Democratic values into practice. It lets working families get to work, buy groceries, and reach everything else they need without owning a car, which costs the average American household more than $10,000 a year. It runs on the operators and mechanics who keep it moving, and I'm proud to be endorsed by their union, ATU Local 1001, along with the Boulder Area Labor Council and the Working Families Party. Building a clean, electric fleet is how RTD does its part on climate change, and the Sierra Club is backing my campaign too.

I've volunteered with grassroots Democratic campaigns because I believe in community-driven change. Now I'm running my own, with the support of Democratic leaders including Sen. Julie Gonzales, Rep. Junie Joseph, and Secretary of State nominee Amanda Gonzalez. See all endorsements.

Jack and fellow volunteers holding signs for the graduated income tax, including one reading Be Gay, Tax the RichJack with Ryan Schuchard and Jill Grano at a campaign eventJack marching behind the Boulder County Democratic Party bannerJack and Max Lord holding Julie Gonzales for U.S. Senate signs at the state assembly