Khanna Tells Democratic Old Guard: Your Time Is Up

After a 15-term Colorado incumbent fell to a progressive challenger, Rep. Ro Khanna used the result to call on the party's establishment wing to clear the way for new leadership.

Progressive Melat Kiros defeated 15-term incumbent Rep. Diana DeGette in a Colorado Democratic primary.
Rep. Ro Khanna publicly called on the party's 'old guard' to step aside following the result.
The upset is the latest sign of mounting pressure on long-serving Democratic incumbents from the party's left flank.
DeGette had represented Colorado's 1st Congressional District since 1997.
The result lands as Democrats continue a broader post-2024 reckoning over direction, leadership, and generational turnover.

It was a Tuesday primary result in Denver that landed like a verdict on the whole Democratic establishment. Melat Kiros, a progressive challenger with no prior federal office, defeated Rep. Diana DeGette — a 15-term incumbent who had held Colorado's 1st Congressional District since 1997. By Wednesday, Rep. Ro Khanna of California was making sure nobody missed the point.

Khanna called the result a signal that the party's “old guard” needed to step aside, framing the Colorado upset as part of a wider generational reckoning rather than a one-district anomaly. The remarks, reported by The Hill, put into plain language what a growing slice of the party's activist base has been saying in subtler terms for months: the incumbency premium is shrinking, and seniority alone is no longer a safe harbor.

DeGette, 67, was first elected in 1996 and had been a senior figure on the House Energy and Commerce Committee. Kiros ran on a platform aimed squarely at younger and further-left voters in a district that covers Denver proper — a constituency that has been drifting progressively for years and apparently had the numbers to act on it this cycle.

The result is the most prominent primary scalp of the 2026 cycle so far, and it arrives as Democrats are still sorting through the wreckage of the 2024 presidential race and debating whether the party's problems are structural, generational, or both. Khanna, who has positioned himself as a voice for that post-2024 reset, now has a concrete result to point to. The next test of whether Colorado was a warning or a trend will come as other primaries close over the following weeks.