It's possible that Louisiana Gov. Bobby Jindal (R) will say he is not running for president on June 24, but more likely than not he is going to jump into the already crowded Republican primary. Either way, Jindal is planning a "major announcement" about his 2016 plans in New Orleans, NBC News reports. He is "likely to announce his plans to seek the GOP nomination," CNN adds, quoting a "person close to the Louisiana governor." Jindal formed a presidential exploratory committee in mid-May.

With Sen. Lindsey Graham (S.C.) formally entering the race on Monday, there are currently nine declared GOP presidential candidates, plus several expected to throw their hats in. In a CNN/ORC poll released Tuesday, Jindal polls at about 1 percent.