Sen. Ted Cruz (R-Texas) is heading to Iowa to speak at a conference of religious conservatives this August, a move that is sure to fuel further speculation about a potential 2016 presidential run.

Cruz will speak at the Family Leadership Summit, an event co-hosted by The Family Leader, a powerful organization of Iowa social conservatives, as well as the national conservative groups Citizens United, Heritage Action, and the National Organization for Marriage.

"The work of the Family Leadership Summit to fight for conservative values and promote strong families is making a positive impact across our country," Cruz said in a satatement provided by the group. "My dad and I are honored to be included in this year's summit and are looking forward to it."

The appearance will mark Cruz's second in as many months in the key presidential caucus state: He's also slotted to attend a fundraising luncheon for the state GOP in late July. Cruz's father is also scheduled to speak at the event.

The event will likely draw other presidential aspirants. Former Sen. Rick Santorum (R-Pa.), who won Iowa's 2012 presidential caucuses partly because of support from top Family Leader organizers, has already agreed to speak. Other invitees include GOP Sens. Rand Paul (Ky.) and Marco Rubio (Fla.), Louisiana Gov. Bobby Jindal (R) and Texas Gov. Rick Perry (R).