Donald Trump appears to be a hot subject during the World Forum of the American Enterprise Institute. The event was attended by the most influential executives in Silicon Valley who are known for avoiding to speak on issues like the presidential politics. A group of well-known Republican legislators, media executives, and wealthy donors were joined by the CEOs of Tesla, Google, Apple and other tech firms recently to talk about Trump’s uncontrollable momentum.

The gathering’s highlight was Karl Rove’s presentation about the focus group’s take on Trump. The real estate mogul’s biggest weakness, said the political guru, was that his voters have neither envisioned him as their president nor as someone the younger generation can look up to.

The conflict between Silicon Valley and Trump has been building up for months, which got worse with the real estate mogul’s continuous attack on businesses like Amazon and Apple and his call for a controversial and sensationalised social, immigration and economic policies, Huffington Post reported.

Well-known venture capitalist and Silicon Valley’s thought leader March Andreessen has previously vowed to support Hillary Clinton for president once Trump is nominated. Amazon’s CEO, on the other hand, previously joked that Trump should be sent into space while CEO Meg Whitman of Hewlett-Packard was serious when he expressed that Trump is not fit to become a president.

In other previous statements, the HP CEO and former Republican candidate Whitman also said that Trump’s comments about Muslims and women are unacceptable. Summing up his concerns of the tech industry, she said that she will not vote for Trump because of her belief that his business track record is not even strong enough to be nominated by the American people, Mashable reported.

The annual World Forum is popular for its secrecy of agenda. The Federal Aviation has recorded that a number of private jets flew to small airports that were proximal to the Sea Island during the weekend. There was a total of 54 planes on St. Simons Island, Georgia; a figure more significant than the Feb 28 records.