WASHINGTON (AP) — After years of pressure from gay rights groups, President Barack Obama plans to sign an executive order banning federal contractors from discriminating against employees on the basis of their sexual orientation or gender identity, the White House said Monday.

While Obama lacks the authority to extend that protection to all Americans, the order being drafted by the White House would impact about 14 million workers whose employers or states currently do not ban workplace discrimination against gay, lesbian, bisexual and transgender individuals. The scope of the measure was tabulated by the Williams Institute at UCLA Law School, which studies sexual orientation and gender identity law and public policy.