Rubio won 168 delegates during his primary run, according to the Associated Press as of Wednesday morning. Taking into account the arcane Republican Party rules that vary from state to state, at least 98 of those will be up for grabs, a Roll Call analysis of the RNC regulations found.

That same analysis shows 45 delegates are still required to vote for Rubio at the convention for at least the first ballot, and other delegates will automatically fall to another candidate based on rules set up by each state.

But because of those unique state processes, it may be some time before we know where all of Rubio’s delegates will end up.

“We’ve had to go back and forth with them on our rules,” said Jake Parsons, the director of operations for the Oklahoma Republican Party of the RNC.

At this point, Donald Trump has 621 delegates, Sen. Ted Cruz of Texas has 396 and Gov. John Kasich of Ohio has 168. If none of those three candidates reach the 1,237 delegates needed to clinch the GOP nomination before the convention, a contested convention could occur where no one candidate secures the majority of delegates on the first nominating ballot. Here’s a look at just some of the various rules states have set up for where delegates for a drop-out candidate go: