harping on

Kavanaugh then pivoted, harping on “detransitioners”—people who transitioned, and then stopped identifying as transgender.

Rather than harping on Trump’s every misstep, Spillane said, Schiff may well choose to focus on getting things done, including by taking a page from his less-partisan past.

But that the larger campaign is harping on this suggests they really think it's smart strategy.

I am constantly harping on the fact that L.A. has amazing, curated boutiques like Mohawk General Store, elevated brands like Ghiaia Cashmere blowing up the menswear scene.

But with Biden repeatedly insisting that he is not stepping aside, Belcher said, Democrats harping on his slipping support were hurting, not helping, their cause.