Santorum and Romney to meet May 4, but endorsement may not come until later

— -- Rick Santorum plans to meet with Mitt Romney on Friday, May 4, although an official endorsement is not likely to immediately follow, Santorum spokesman Hogan Gidley tells Yahoo News.

Santorum, who defeated Romney in Iowa and in ten other states during the Republican presidential primaries, was Romney's chief rival before he dropped out of the race earlier this month.

Gidley said they were still working out the details of an endorsement, although Romney has predicted that he and Santorum will campaign together.

The location of the meeting is still being determined.

More popular Yahoo! News stories:

• Secret Service prostitution scandal: White House clears advance staff

• Romney says VP search still in 'early stages'; reminisces about Paris vacations

• Obama visits Holocaust Museum, unveils new Syria and Iran sanctions

Want more of our best political stories? Visit The Ticket or connect with us on Facebook, follow us on Twitter, or add us on Tumblr. Handy with a camera? Join our Election 2012 Flickr group to submit your photos of the campaign in action.