“Latinos for Trump” signs at a campaign event for President Donald Trump in Phoenix, Sept. 23, 2020. Latino voters shifted sharply toward President Trump in each of the last two presidential elections, a trend that shocked and confounded Democrats. (Adriana Zehbrauskas/The New York Times) By JENNIFER MEDINA Latino voters shifted sharply toward President Donald Trump in each of the past two presidential elections, a trend that shocked and confounded Democrats. Many in the party have been…