Zuckerberg's political advocacy group adds Diller, Chen as supporters

Chen, who immigrated to the U.S. from Taiwan when he was young, said in a statement that his success story would only have been possible in the U.S.

"As someone who immigrated from Taiwan to the United States at a very young age, I know firsthand how welcoming and supportive our country is to those of us coming here to make a better life," Chen said. "My story could only happen here – as both an immigrant and a proud member of the tech community, I'm proud to join FWD.us as a funder and supporter."

FWD.us is backed by an all-star roster of major tech executives and focused on pressing Congress to pass comprehensive immigration reform.

Despite its impressive list of supporters and funders from the tech industry, including Yahoo CEO Marissa Mayer and Google Executive Chairman Eric Schmidt, FWD.us has had a rocky beginning.

Liberal and progressive groups launched protests against FWD.us for funding controversial political TV ads and threatened to pull funding for Facebook ads over them.

The ads were aimed at touting the conservative bona fides of senators who back immigration reform by highlighting their support for controversial environmental policies, such as construction of the Keystone XL pipeline.

Shortly after the outcry from these groups, Musk and Sacks left FWD.us.

“Initially, I agreed to be a part of FWD.us because I agree with immigration reform,” Musk said at the D: All Things Digital conference this week in an interview with Kara Swisher and Walt Mossberg. “But I think the methods that were employed — it was a little too Kissinger-esque, Realpolitik."

“I think we should try to make things happen for the right reason. We shouldn’t give in to the politics,” Musk added.