How Donald Trump Became Unbeatable

Sarah Longwell: “Today, thanks to Trump’s dominant performance in South Carolina, the Republican primary is all but over. Trump’s margin was so comfortable that the Associated Press called the race as soon as polls closed. How did we get here? How did Trump go from historically weak to unassailable?”

“I talk with Republican-primary voters in focus groups every week, and through these conversations, I’ve learned that the answer has as much to do with Trump’s party and his would-be competitors as it does with Trump himself. Most Republican leaders have profoundly misread their base in this moment.”

“The other candidates hoped to be able to defeat Trump even as they accommodated his behavior and made excuses for his criminality. They even said they would support his reelection. By doing so, they established a permission structure for Republican voters to return to Trump, all but ensuring his rise.”