Activists on Tuesday will submit a 2016 ballot initiative which seeks to legalize gay marriage to the Arkansas attorney general's office.

Arkansas Initiative for Marriage Equality (AIME) co-founder Trey Weir and Brooks Cato, the deacon of St. Paul's Episcopal Church of Newport, will speak briefly during a news conference to be held on the front steps of the Arkansas state Capitol.

A second group, Arkansas for Equality, is working to repeal Amendment 83, the state's 2004 voter-approved constitutional amendment limiting marriage to a heterosexual union.

Activists are looking to change the state's definition of marriage with two referendums. One would repeal the amendment in 2014, while the second would legalize gay nuptials two years later.

According to a Human Rights Campaign (HRC) poll of 600 adults conducted between June 26 and June 30 and released on Monday, only 38 percent of Arkansans support marriage equality. Fifty-five percent remain opposed.

Last week, 11 gay and lesbian couples filed a lawsuit challenging the constitutionality of Amendment 83.

(Related: Gay couples sue for right to marry in Arkansas.)