RITTMAN, Ohio — In the daily race that is her life, Sharla Baker does not think about politics very much. She rises early, drives to the gas station to buy coffee, feeds her baby, dresses her two other children, ages 3 and 2, and hustles them all off to day care. By 9:30 a.m. she pulls into a hair salon 45 minutes away, where she is training to be a cosmetologist. She waxes and cuts all day long, making only the money she earns in tips, which on a recent day last month was $8.41.
But Ms. Baker does vote. She picked Barack Obama for president in 2008 and 2012. He seemed sincere and looked like a happy family man. But most important, he was a Democrat. Her great-grandmother, who grew up poor in Pennsylvania, always said that Democrats look out for the poor people. In 2016, though, she voted for Donald J. Trump. Yes, he was rich and seemed mean on his TV show, “The Apprentice.” But she liked how he talked about jobs and wages and people being left out of the economy.
Now, more than a year later, she is wavering. “I voted for Trump because I wanted some change going on,” said Ms. Baker, 28. “But then again, maybe he’s going to do the wrong change.”
The swing of Obama voters to Mr. Trump proved a decisive factor in the 2016 presidential election. Of the more than 650 counties that chose Mr. Obama twice, about a third flipped to Mr. Trump. Many were in states critical to Mr. Trump’s win, like Iowa, Michigan, Ohio and Wisconsin.