Donald Trump has dominated the airwaves for much of the 2016 presidential campaign, but the Republican presidential nominee has faltered in recent polls.

His campaign has been dogged by a series of controversies, including Trump’s sparring with the family of a Muslim soldier killed in Iraq, his invitation to Russian hackers to look into Hillary Clinton’s emails, and his initial hesitancy in endorsing House Speaker Paul D. Ryan.

Are those issues causing second thoughts among his most ardent supporters? Earlier this year, we profiled several voters around the country — a personal trainer in Virginia, a retired car salesman in Las Vegas and a Latina immigrant in Texas, among others. All had become, for different reasons, enthusiastic citizens of Trump Nation.

What’s behind Trump’s slipping poll numbers? Have the latest controversies caused these voters to reconsider? We checked back with some of them, and the answer is: not really. The things that made Trump appealing to them to begin with — his willingness to take on the status quo, his calls for building American strength and clamping down on immigration — still hold true, they said.