A. J. Spiker serves as an adviser to RandPAC and is a former state chairman of the Republican Party of Iowa (RPI).

Spiker was nominated to be chairman of the RPI in 2012 by then RNC committeewoman Kim Lehman, he was elected with 53% of the vote.

In 2013 Spiker easily won reelection with 72% of the vote, he was nominated by RNC committeeman Steve Scheffler.

[1] Spiker's leadership in 2012 helped turn out over 20,000 more Republicans than Democrats during the statewide general election and he increased the number of absentee voters to the highest in state party history.

[2][3] Prior to becoming the RPI chairman, Spiker served as one of the 17 members of its state central committee.