Carrying horns, handwritten signs and bottles of gasoline to set tires on fire, a group of men marched into one of the many protests that have paralyzed parts of the Haitian capital, Port-au-Prince, this year.

They were angry with their president, who let Parliament collapse and failed to hold scheduled elections. They were angry with the United Nations for not ensuring a fair vote for his successor. And they were angry with the former American secretary of state who had helped put him in power.

“You see all these people here?” said one of the Haitian-flag-draped protesters, Jean Renold Cenatus, 32, who said he was unemployed. “It’s because of what Mrs. Clinton did five years ago that we are facing this situation.”

In their post-2000 lives as global citizens, Hillary Clinton and former President Bill Clinton have been tied to no country more closely than Haiti. As a United Nations special envoy, Mr. Clinton helped raise hundreds of millions of dollars for the country after its devastating 2010 earthquake. Mrs. Clinton traveled there four times as secretary of state and shepherded billions of dollars in American aid.