The Republican-controlled Indiana House could vote as early as Monday on a constitutional amendment banning gay marriage.
Opponents say the amendment isn't needed because Indiana law already bans gay marriage, but supporters worry that courts could overturn that law.
An amendment banning gay marriage passed the General Assembly in 2005 when Republicans controlled the House and Senate, but constitutional amendments must go through two separate Legislatures before being put to a public vote. Democrats won control of the House in 2006 and the proposal never cleared that chamber that year.
The proposal has a better shot of passing now that Republicans again control both chambers. If it clears the Legislature this year, it would have to pass again in 2013 or 2014 before getting on the ballot.