WASHINGTON, D.C. — Senate Majority Leader Harry Reid is the target of an ethics and conflict-of-interest complaint over his involvement in a visa-investor venture.

The complaint, filed by the activist group Cause of Action, asserts that the Nevada U.S. senator intervened with top immigration officials to benefit EB-5 visa seekers. The applicants were law clients of Reid’s son.

Among the officials contacted by Reid was Alejandro Mayorkas, then director of the U.S. Citizenship and Immigration Services.