- Monday's Clinton-Trump debate could be one of the most consequential ones in the past 40 years, writes debate veteran David Gergen
- Hillary Clinton could solidify her slight edge or suffer a bruising defeat at the hands of Donald Trump, he says
David Gergen is a senior political analyst for CNN and has been a White House adviser to four presidents. A graduate of Harvard Law School, he is a professor of public service and co-director of the Center for Public Leadership at the Harvard Kennedy School. Follow him on Twitter: @david_gergen. The opinions expressed in this commentary are his.
(CNN)Monday night's debate between Hillary Clinton and Donald Trump is shaping up as the climactic moment of this presidential campaign -- one that will re-shape the landscape until Election Day.