Millennials and seniors are spurning Trump. Here's why middle-aged voters are sticking with him

Smoke and ash from the Bobcat fire burning in the Angeles National Forest have blanketed the region for a week, contributing to poor air quality that nearly obscures the tall buildings of downtown Los Angeles on Monday, September 14, 2020. Current air quality readings are considered unhealthy for sensitive groups, according to the Environmental Protection Agency. (Al Seib/Los Angeles Times/TNS)

WASHINGTON _ Generation Z loathes him. Millennials overwhelmingly back his opponent. And even once-supportive seniors have turned away.

As his turbulent reelection bid enters its final phase, President Donald Trump has been hindered by lackluster approval from most generations of voters _ with one important exception.