Romer had promised to appoint a study group June 5, when he vetoed HB 1198, an attempt to make it clear that the state would recognize as legal only marriages between a man and a woman.

But Arnold, referring to Romer's other job as general chairman of the Democratic National Committee, said the governor "seems to be wavering to the side that is going to do the most good for him in the DNC."

Romer vetoed a similar bill in 1996 and offered to work with legislators to set up a study at the time.

