Trump headed to Iowa next month
© Greg Nash

Business mogul Donald TrumpDonald John TrumpChelsea Clinton announces birth of third child Ukrainian officials and Giuliani are sharing back-channel campaign information: report Trump attacks 'the Squad' as 'racist group of troublemakers' MORE (R) will speak at the Iowa Freedom Summit next month along with a growing list of conservatives and potential Republican presidential contenders.

Trump has been stoking talk on Twitter that he might run for president in 2016, and a visit to the early voting state will fuel that speculation.

Potential GOP contenders Gov. Chris Christie (N.J.), Dr. Ben Carson, Sen. Ted Cruz (Texas), former Arkansas Gov. Mike Huckabee, former Sen. Rick Santorum (Pa.), and former Hewlett-Packard CEO Carly Fiorina will also speak at the event.

Republican presidential aspirants spend a lot of time courting voters in the Hawkeye State, as a strong showing at the unpredictable first-in-the-nation caucuses can propel a candidate deep into the primaries.

Last year, Trump reportedly spent $1 million on political research in consideration of a presidential bid, and since 2013, he’s made several trips to Iowa to meet with social conservatives. 

Trump spent months teasing a potential candidacy in 2012, and some early polls showed him leading the entire field of GOP candidates. He ultimately withdrew from contention before any debates, caucuses or primaries were held.

Many political observers don’t believe Trump is serious about a bid, saying he’s more concerned with generating headlines and enhancing his global business brand.