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Trace Gallagher reported on "The Kelly File" tonight that the state primaries and caucuses being held between now and July's Republican National Convention might not deliver enough delegates to any one GOP hopeful to secure the party's nomination.

Gallagher explained that the more the six remaining Republican candidates split delegates, the less likely it is that any one candidate will reach the magic number of 1,237 delegates.

If no one hits that number, it becomes a "fight on the convention floor in Cleveland," Gallagher said, adding that it appears that campaigns are quietly prepping for that what-if scenario.

He explained how a brokered convention - also known as a "contested convention" - works: If the vote goes to the convention floor, the delegates are obligated to vote for the candidate they did during the primaries and caucuses on the first ballot. But on the second, third and fourth ballots, they can vote for whoever they want.

Gallagher said that's why some campaigns are requesting personal information about the delegates from state party officials, in order to do research and set up meetings. He revealed that one campaign is reportedly even using "delegate tracking software."

"The goal, of course, is to push your delegate across the finish line or poach someone else's along the way."

Watch more above.

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