Delph says after discussing it with his wife and five daughters, he determined that a run for any office next year would be too great a burden on his family.
FEC filings show the Republican candidate will make a run for Indiana's 9th District House of Representatives seat.
The 9th District seat is currently held by Rep. Todd Young, who has joined the race for the Senate seat being vacated by Sen. Dan Coats.
Former House Speaker John Gregg managed to out-fundraise the incumbent through June by a little more than $100,000.
The total number of voters that cast ballots in May is actually down over the last four municipal election cycles.