CNN Opinion asked a range of contributors to give their take on the first Republican Party debate of the 2016 presidential campaign, and to pick their biggest winners and losers from the night. The opinions expressed in these commentaries are solely their own.

Republican debate

Donald Trump may ultimately wind up damaging Republican chances next November but yesterday he gave the GOP presidential candidates a huge gift: his presence generated the biggest, most attentive opening day audience in American politics. Each of the 17 candidates had a chance to audition before a massive number of voters, not to mention donors and journalists. (The debate had a record 24 million viewers, according to Nielsen.)

As a group, the candidates generally rose to the occasion. Yes, there was still too much ideological rigidity, too many canned answers and too little attention to ways that technology and globalization are reshaping the United States. But with nine sitting or former governors and five sitting or former Senators among the candidates, the GOP could showcase plenty of talent.

David GergenFor my money, there were two candidates who helped themselves the most. One was Governor John Kasich of Ohio: while sticking to conservative principles, he gave voice to common sense Midwestern values as well as a moral commitment to Americans living in the shadows. In effect, he tapped into some of the same anger that Trump has understood but turned it in a warm, positive direction.

The other big winner was Carly Fiorina whose performance in the afternoon debate was universally acclaimed in the press and social media. The GOP ought to hope that she moves up the polls so that women can see at least one representative on center stage — and in her case, one who is articulate, sophisticated and strong.

Dan Pfeiffer

As for Trump himself, the old rules would say he hurt himself last night, especially with opening answers that came across as narcissistic and boorish. But with so much free floating anger and frustration in today’s politics, the old rules aren’t as powerful as they once were. Who knows? He could deliver yet another big audience when CNN hosts a second round of debates in September.

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.