Washington, D.C. ? The House on Wednesday approved the first federal ban on job discrimination against gays, lesbians and bisexuals.

Passage of the Employment Non-Discrimination Act came despite protests from some gay rights supporters that the bill does not protect transgender workers. That term covers transsexuals, cross-dressers and others whose appearance does not match their gender at birth.

The measure would make it illegal for employers to make decisions about hiring, firing, promoting or paying an employee based on sexual orientation. It would exempt churches and the military.

After the 235-184 vote, supporters are expecting a tough fight in the narrowly divided Senate, where Massachusetts Democrat Edward Kennedy plans to introduce a similar version.

A veto from President Bush is expected if the proposal does pass the Senate.