A Texas candidate for attorney general has argued that an amendment made to the state’s constitution to ban gay marriages has actually made all marriages illegal.

According to Houston attorney Barbara Ann Radnofsky, the clause was not written properly.

The clause reads: “This state or a political subdivision of this state may not create or recognise any legal status identical or similar to marriage.”

Radnofsky told the Star-Telegram: “You do not have to have a fancy law degree to read this and understand what it plainly says.”

The amendment was made by the Texas Legislature in 2005. Voters overwhelmingly approved it.

Jerry Strickland, a spokesman for current attorney general Greg Abbott, who approved the wording, dismissed her claims.

“The Texas constitution and the marriage statute are entirely constitutional,” he said.