Mitt Romney says he will not run for reelection

• His term is up in 2024

He is 76 and sites wanting a younger generation to step up

Romney said after he leaves the senate he plans to focus on getting more young people involved in the political process

Romney has denied his decision was motivated by concerns he might lose a primary

The seat is in the solid R category

It is expected that a lot of Republicans will run for the seat

• Utah uses a convention system

• Two candidates can emerge from the convention and end up on the primary ballot

• If a candidate gets over 60% of the delegate vote than only that candidate moves on

• Candidates can also get on the ballot via petition