Former Pennsylvania Sen. Rick Santorum (R) met with top Republicans in the state on Tuesday to discuss the possibility of another run for president, the Philadelphia Inquirer reports.

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A letter inviting leaders to the private meeting in Harrisburg, Pa., said that Santorum would lay out what a 2016 presidential run would look like, the Inquirer reports. The meeting was organized by Fred Anton, an influential Republican in the state and president of the Pennsylvania Manufacturers Association. 

The meeting is the latest sign that Santorum is seriously considering a run. He is also planning to meet with backers in Washington next week. 

"As you probably know, RJS is seriously considering a run for the White House in 2016," Santorum adviser Matt Beynon wrote in an email ahead of the Washington meeting, obtained by CNN. "With the midterms and the new year behind us, he is beginning the final stages of preparation and consideration of another campaign."

Santorum said in November that he would make a decision in June 2015. But he could be moving up his timeline given that former Florida Gov. Jeb Bush and former Arkansas Gov. Mike Huckabee have recently made moves towards campaigns. 

Santorum would have to compete with Huckabee for the social conservative vote. He has also put a focus on economic issues, and could introduce a debate over raising the minimum wage, which he supports, into the primary. 

Santorum came from behind to have a surprisingly strong showing in his 2012 presidential run, ending up winning the Iowa caucuses by a hair. 

Huckabee, for his part, won Iowa in 2008.