Dear Jesse, The word you are looking for is 'ideologue'

Merriam-Webster

Conservative lawmaker announces he won't seek re-election.  (Madison.com, 1/23/2018)

Other Kremer posts:
2017
Good luck with that: Rosendale farmers ask creepiest, most conservative WI legislators for help.  (8/23/2017) 
Kremer wets his pants over Foxconn vote.  (8/21/2017)
UPDATE.  Jesse Kremer and the company he keeps (The Mike Pence edition).  (6/12/2017)
UPDATE. Dear gun obsessed Jesse, Most folks are lobbying against, not promoting, your once-dismissed bill.  (1/3/2017)
2016
Jesse Kremer in so many words: LGBT children need not apply.  (12/23/2016)
Thank you, Robin Vos, for snubbing these 3 nutburgers for committee chair assignments.  (12/9/2016)
The Theocracy Chronicles: The nutty judicial worldview of Jesse Kremer.  (9/16/2016)
3 GOP Wisconsin State Assembly frosh running unopposed for re-election.  (7/27/2016)
Abortion pill politics: Jesse Kremer likes what he sees in Arizona and Arkansas.  (7/2/2016)
Kremer offers his words of healing in aftermath of Orlando massacre.  (6/15/2016)
NC-17 (at least): Inside the bizarre, twisted mind of Jesse Kremer.  (4/27/2016)
UPDATE: GOP Assembly leaders bail on "guns in school" bill, to disappointment of cluster of usual suspects.  (2/21/2016)
In so many words, Rep. Jesse Kremer sez he'll sleep better with more guns in Wisconsin schools.  (1/14/2016)
2015
Cartoon conservative principles, the Christmas edition: Rep. Kremer accuses fire officials of 'relieving themselves'.  (12/23/2015)
Bathroom bill update: Julaine Appling must have inadvertently loosened her grip on Jesse Kremer's leash.  (12/16/2015)
Out of (local) control: When it comes to anything resembling a train, Republicans just can't help themselves.  (12/1/2015)  
The 'bathroom bill' marriage of Jesse Kremer and Julaine Appling.  (11/21/2015)
ALEC/NRA waterboy Jesse Kremer blames the media.  (10/23/2015)
Waterboys for the NRA and ALEC: Rep. Jesse Kremer (R-Kewaskum) and Sen. Devin LeMahieu (R-Oostburg)  (10/13/2015)
Wisconsin Republicans continue their laser-like focus on jobs and the economy.  (10/7/2015)
2014
Wisconsin Assembly candidate denounces tax breaks for wind energy but conveniently overlooks what big oil receives.  (8/7/2014)
Just what the Wisconsin legislature needs: Another ALEC disciple.  (8/7/2014)