Political activities
Katzenberg has been a prominent supporter of Democratic candidates for elected office since the Clinton administration and was an early supporter of Barack Obama. Reportedly "smitten" by Obama's speech at the 2004 Democratic National Convention, Katzenberg pledged his full support to Obama in 2006 if he decided to run for president. During his campaign, Obama praised Katzenberg for his "tenacious support and advocacy since we started back in 2007."
Katzenberg was an avid fundraiser for Obama, doing so while much of Hollywood was still supporting the Clintons. The Wall Street Journal reported his efforts allowed Katzenberg to become an "informal liaison" between Hollywood and the Obama administration. Katzenberg was reportedly Obama's top "bundler", and, with Andy Spahn, had collected at least $6.6 million in combined donations for both of Obama's presidential campaigns. In 2012, Katzenberg organized a fundraiser for Obama's 2012 presidential campaign at the residence of George Clooney. The event reportedly set a record for presidential fundraisers, garnering approximately $15 million. Some Obama campaign officials were unhappy with some of Katzenberg's requests, including that Obama stay and talk with guests at each of the 14 tables at the dinner.
In 2012, the Securities and Exchange Commission reportedly opened an investigation into DreamWorks and other movie studios for bribing foreign officials. It was opened after the announcements of a deal between China and the United States to increase the number of American movies released in China and the launch of Oriental DreamWorks, a Chinese offshoot of DreamWorks Animation. News of the investigation broke shortly after Katzenberg assisted Joe Biden with brokering the Chinese movie deal and Katzenberg had held a fundraiser for the Obama campaign. The timing of the events led Washington Post columnist Jennifer Rubin to question if the deal and fundraiser were related. Katzenberg denied the existence of the investigation, saying that DreamWorks had never been asked for documents or to otherwise cooperate with an investigation.
In October 2012, Obama and Bill Clinton reportedly visited Katzenberg at his home in Beverly Hills for a private meeting with wealthy Democratic donors. The Obama campaign said the meeting was to thank supporters, but some members of the campaign finance committee said that it involved the pro-Obama political action committee Priorities USA Action. Members of the White House press corps who had traveled to California with Obama were kept in the garage of Katzenberg's mansion and one reporter called the meeting "unusual". Katzenberg, who had previously donated $2 million to Priorities USA Action, donated an additional $1 million to the PAC that month. Katzenberg donated $1 million to Priorities USA Action in 2015, which supported Hillary Clinton in the 2016 presidential race. In October 2016, he hosted a $100,000-per-person fundraiser at his Beverly Hills residence with Obama as the main attraction.
In 2018, following the Stoneman Douglas High School shooting, Katzenberg pledged $500,000 to the March for Our Lives gun-control demonstration.
Katzenberg donated approximately $1.8 million to a PAC supporting Karen Bass's Los Angeles mayoral bid in 2022.
In 2023, Katzenberg was named as one of the national co-chairs of Joe Biden's 2024 campaign for reelection as president. Katzenberg noted he would provide significant financial support for Biden's re-election. In December 2023, Katzenberg hosted a fundraiser and, at the time, dismissed concerns about Biden's age, instead referring to it as "his superpower".
In 2024, Katzenberg was an advisor to and co-chair of the Biden reelection campaign. After Biden dropped out of the race, Katzenberg became co-chair of Kamala Harris's 2024 presidential campaign.