“There is no agreement of any kind, and I plan to go all the way to Tampa,” Mr. Gingrich said, referring to the August GOP presidential nominating convention in Florida…

According to a source close to the Gingrich campaign, the two GOP rivals met early on the day of the Louisiana primary at Mr. Romney’s hotel in New Orleans.

On Tuesday, the former House speaker signaled that he is toning down the anti-Romney rhetoric he has used on the campaign circuit, telling reporters while campaigning in Annapolis that, “Obviously I will support [Mitt Romney] and will be delighted to do anything I can to help defeat Barack Obama.”

But Wednesday, the former congressman from Georgia struck a defiant note again.