First you break government. Once broken, privatize everything on the justification of government not working.
Use propaganda to make people hateful and violent towards election workers. Use to loss of election workers to either have the incumbent administration run elections with "impartiality" or cancel elections altogether.
Cut government funding and make everything unpredictable, causing farmers and business owners to go bankrupt. Have oligarchs buy up everything at rock-bottom pricing, and turn the citizens back into serfs, who will be poor enough to shut up and do as they're told.