Although super-PACs operate with more freedom than traditional campaigns, able to accept contributions of unlimited size, they can take money only from people who are U.S. citizens or green card holders.
“We don’t comment on specific donors, but we do have systems in place to ensure compliance with all FEC rules,” the super-PAC, Right to Rise USA, said in an e-mailed statement, referring to the Federal Election Commission. A person close to Right to Rise said the group confirmed Chen had a green card before accepting the donation. A spokesman for Bush’s campaign declined to comment.