Gingrich eyes White House in '08

DES MOINES, Iowa, May 12 (UPI) -- Former Speaker of the House Newt Gingrich said he will make a decision on running for president in 2008 based on the popularity of his latest book.

"If you show up someplace and there's a big enough movement, we can talk about that," the Georgia Republican told the Des Moines Register Wednesday while touring Iowa, one of the top primary election battlegrounds.

Gingrich, one of the major players in congressional Republican's 1994 Contract with America, says the nation should be prioritizing tougher border-security and immigration policies and working to make the U.S. economy more competitive in world markets.

Gingrich made a similar trip to New Hampshire in April.