The National Organization for Marriage (NOM) announced last week that Mike Huckabee will be a featured speaker at its upcoming March for Marriage.

Opponents of marriage equality will gather for a morning rally on June 19, 2014 at the Capitol Building in Washington, D.C., followed by a march to the U.S. Supreme Court.

The 58-year-old Huckabee served as governor of Arkansas between 1996 and 2007. In 2008, he mounted an unsuccessful bid for the White House as a conservative Republican. He currently is the host of Fox News' Huckabee.

A vocal opponent of gay rights, Huckabee rallied behind Chick-fil-A's Dan Cathy after the CEO received a backlash for speaking out against marriage equality and recently called for the ouster of the judge who ruled Arkansas' marriage ban invalid.

(Related: Mike Huckabee: Impeach judge who struck down Arkansas' gay marriage ban.)

“Governor Huckabee has been a consistent leader and a strong voice for pro-family values in our country for years,” said NOM President Brian Brown. “We are thrilled that he will be joining us for the March for Marriage, which promises to be a historic success. We have a great line-up for the rally, and the response from supporters around the country has been overwhelming and very positive.”

“We're going to show the media elites and those in public office that the American people still stand for marriage,” he added. “We're going to show people around the nation – especially young people – that there's no reason for shame or cause for fear in standing for this essential truth.”

Additional speakers expected at NOM's march include San Francisco Archbishop Salvatore Cordileone, New York State Senator Ruben Diaz, Pastor Jim Garlow, La Manif Pour Tous President Ludovine de la Rochere, author Ryan T. Anderson and American Values President Gary Bauer.