 From 2006 Ronalds was a member of the executive of the Liberal Party, the Administrative Committee, serving as a Vice President from 2007–2011.During his time on the Administrative Committee he also Chaired the Federal Seats Committee and the Senate Committee, was a delegate to the Federal Council and was involved in party reforms as well as numerous other organisational committees.Ronalds won pre-selection for the Upper House seat of Eastern Victoria in December 2013 following the announcement that predecessor Philip Davis would retire after 21 years in Parliament.