The National Organization for Marriage (NOM) has yet to comment on a federal judge's ruling striking down Wisconsin's ban on gay marriage.

Gay and lesbian couples in two counties began marrying on Friday after a federal judge declared invalid Wisconsin's 2006 voter-approved constitutional amendment prohibiting state officials from recognizing any union other than a heterosexual marriage.

(Related: Gay couples begin marrying in two Wisconsin counties.)

As of Sunday afternoon, NOM, the nation's most vociferous opponent of marriage equality, had yet to publicly comment on events occurring in Wisconsin.

On its blog and social media accounts NOM continued to promote its upcoming March for Marriage, announcing on Friday the addition of former presidential candidate Rick Santorum to the June 19 anti-marriage equality event, which includes a march from the Capitol Building in Washington D.C. to the U.S. Supreme Court.

(Related: Rick Santorum to join gay marriage foe NOM at March for Marriage.)

“Looking for #March4Marriage apparel?” the group tweeted on Friday. “You're in luck! Visit our online store.”