When the last presidential race was in its early stages, Katie Glueck was a senior at Northwestern University. Now covering the Ted Cruz campaign for Politico, Ms. Glueck, 26, belongs to a select group of millennial reporters who have a front-row seat to the greatest political show on earth.

While youth is a virtue for those covering the turbulent 2016 campaign, it has been known to get in the way now and then. Caitlin Huey-Burns, 28, who covers primaries and caucuses for the website RealClear Politics, said, “I often get asked by voters if I’m writing for the school paper.”

Rosie Gray, 26, who covers the campaign for BuzzFeed, said that her age is only occasionally a factor. “Honestly, the times I feel the most young is when I’m talking to a voter on the trail and I sound like a pipsqueak saying, ‘Excuse me, ma’am, can I ask you a question?’” she said. “A lot of that had to do with how you present yourself and how you act. You can either act like a young little thing or not.”

And she disputed the notion that her age is much of an issue. “I’m not that young,” she said. “I’m 26. Thirty is staring me down the barrel of a gun.”