"It was December 2007, and the Democratic race for the presidential nomination had taken a bit of a nasty turn. Billy Shaheen, then co-chair of Hillary Clinton’s New Hampshire campaign, had speculated to The Washington Post that Republicans would attack Sen. Barack Obama on the drug use the candidate had admitted to on the trail and in 'Dreams From My Father,' his 1995 memoir. As Shaheen put it: 'It’ll be, ‘When was the last time? Did you ever give drugs to anyone? Did you sell them to anyone?’ There are so many openings for Republican dirty tricks.'
The next day, Obama and Clinton were both at Reagan National Airport on their way to Iowa for a debate, and the candidates met on the tarmac for what became a brief but heated conversation. Then-Obama personal aide Reggie Love witnessed the event and describes it in his new memoir:
'I want to apologize for the whole Shaheen thing,' Clinton said. 'I want you to know I had nothing to do with it.'
The candidate very respectfully told her the apology was kind, but largely meaningless, given the emails it was rumored her camp had been sending out labeling him as a Muslim. Before he could finish his sentence, she exploded on Obama. In a matter of seconds, she went from composed to furious. It had not been Obama’s intention to upset her, but he wasn’t going to play the fool either.To all of us watching the spat unfold, it was an obvious turning point in our campaign, and we knew it. Clinton was no less competitive or committed to a cause than Obama, and the electric tension running through both candidates and their respective staffs reflected the understanding that she was no longer the de facto Democratic candidate. Her inevitability had been questioned. . . .
I remember Obama telling me later that day that he knew he was going to win the nomination after that moment on the tarmac, because Clinton had unraveled, and he was still standing and keeping his cool. It was just the confidence boost he needed."
"Several Democrats argued that Mrs. Clinton, should she be her party’s nominee, would easily beat Mr. Trump. They were confident that his incendiary remarks about immigrants, women and Muslims would make him unacceptable to many Americans. They had faith that the growing electoral power of black, Hispanic and female voters would deliver a Clinton landslide if he were the Republican nominee.
But others, including former President Bill Clinton, dismissed those conclusions as denial. They said that Mr. Trump clearly had a keen sense of the electorate’s mood and that only a concerted campaign portraying him as dangerous and bigoted would win what both Clintons believe will be a close November election.