Even before Chaffetz announced his abrupt exit, his political luck had suffered a steep decline when Trump was elected. As oversight chairman, he was preparing to spend four years investigating President Hillary Clinton’s alleged scandals and misdeeds. Then the Republicans unexpectedly seized control of the White House, leaving Chaffetz with the unenviable task of policing his own party. It was a fraught job to begin with, and his casual attitude toward the Trump family’s potential conflicts of interest — demonstrated in his interview with me last month — has only increased the pressure on him.
“Aside from Trump and Clinton,” one Utah Republican told me last month, “nobody’s fortunes changed more on presidential election night than Jason Chaffetz.”
https://www.theatlantic.com/politics/archive/2017/04/jason-chaffetz-reelection/523575/