110 House members are calling on President Barack Obama to sign an executive order prohibiting workplace discrimination against gay, bisexual and transgender Americans by federal contractors.

“It is unacceptable that it remains legal to fire or refuse to hire someone based on his or her sexual orientation or gender identity,” the lawmakers wrote in a letter to Obama. “Federal law continues to allow this and discrimination based on sexual orientation is legal in 29 states and discrimination because of gender identity is legal in 34 states. Action at the federal level can put a stop to these unfair and discriminatory workplace practices in every state.”

The lawmakers said they remain committed to passage of the Employment Non-Discrimination Act (ENDA), a bill which seeks to ban such discrimination but whose likelihood of passage in the Republican-controlled House appears unlikely.

“[Y]ou can take action today to help prevent these types of unfair labor practices and to lay the groundwork for passage of ENDA.”

Last year, Obama decided against signing such an order and called on Congress to approve ENDA.

(Read the entire letter, organized by Democratic Congressmen Frank Pallone, Jr. and Jared Polis.)