Here are two articles.
“Clinton’s controversies got more attention than Trump’s (19 percent versus 15 percent) and were more focused,” according to a study author cited in this column.
Clinton was wrong to use a personal email server and none of her explanations were satisfactory. The email issue was not the only reason she lost. Still, that does not excuse the excessive coverage this issue got compared to her policy views and Trump’s much bigger personal flaws.