[1][2] Hollo was candidate for the 42nd district of the North Carolina Senate (which includes all of Alexander and Catawba Counties) in both 2018 and 2020, losing the Republican nomination to Andy Wells and Dean Proctor, respectively.
In 2006 he ran for re-election, but he was defeated by Ray Warren, a former Alexander County Sheriff who had unsuccessfully run for the NC House in 2002.
Hollo lost again in a rematch in 2008, but easily gained back his former seat in 2010 when Warren didn't seek re-election.
Hollo faced another incumbent, Darrell McCormick in the 2012 primary, but easily defeated him and won the general election in a landslide against Democratic nominee William Stinson.
Hollo unsuccessfully ran for the North Carolina Senate in the 42nd district in both 2018 and 2020, losing the Republican nomination both times.