A Congressional Democrat from Illinois gave his support last year to a bill which seeks to abolish marriage rights for gay and lesbian couples with an amendment to the U.S. Constitution that defines marriage as a heterosexual union.

Kansas Rep. Tim Huelskamp, a Republican, introduced the measure in 2013, after the Supreme Court struck down a key provision of the Defense of Marriage Act (DOMA), which led to the federal government's recognition of same-sex marriages.

Illinois Rep. Dan Lipinski indicates his support for the measure in a questionnaire from the conservative Illinois Family Institute.

According to the Washington Blade, Lipinski appears to be the only sitting Congressional Democrat to back such a measure.

He also told the Illinois Family institute that he's opposed to passage of the Employment Non-Discrimination Act (ENDA), an LGBT protections bill.

When asked whether Lipinski still holds the views he expressed in the questionnaire, a spokesman did not have an immediate comment and told the Blade that it was free to publish the information.