Gov. Sam Brownback of Kansas has said he will attend the Aug. 6 "day of prayer and fasting on behalf of our troubled nation" at Reliant Stadium in Houston, the Dallas Morning News reported Monday, and Louisiana Gov. Bobby Jindal says he will come if he can. All three governors are Republicans, but Perry calls the event nonpartisan.
Perry has voiced interest lately in jumping into the GOP presidential field.
On their Web site, organizers of the event, funded by the American Family Association, liken America's situation to Bible times.
"The people were not prepared to face the external threats rising up against them: economic, political and military in nature," they write.
Evangelical fundraiser David Lane and former Texas Republican leader Wayne Hamilton are among the organizers.