Moving forward onto a new decade the Republican Party must change certain aspects of how it presents itself onto the general mass of voters.
1-A common complaint I hear from average people, is that they are a party funded by corporations in order to serve their interests and of the rich. (Which with funders such as the Kochs may not be completely unfounded at times). It should present itself as party for the lower working class people. While I personally criticize some aspects of labor unions, at the same time they can be a valuable vantage point of support for this goal . Make them realize it is the corporations that they are fighting against that want mass migration, which will inevitably depress their wages or worse yet leave them without a job. We also should do a better job in selling these labor unions on tariff policy that will in the long term help them.
2-Another thing we need to change is our approach to green energy. Being ambiguous or dismissive is not going to help us in the long term. We need to present ourselves as an alternative option to Democrats of achieving the replacement of fossil fuels with cleaner forms of energy. A good way to set ourselves apart is that while the Democrats will use regulations and financial penalties like Carbon taxes which will only affect negatively lower income people who can't afford a Tesla, we can offer tax credit subsidies, deregulation and direct investments to energy sources like Thorium Based Nuclear Power. This besides attracting "green" voters, can also satisfy a nationalist want for energy self reliance and decrease our need for oversight in the affairs of the Middle East.
3-The party should expand on the rhetoric established by Trump, and focus on legal immigration reform. Start asking the question of how many more immigrants do we need and rethink just how many we can take in per year.
4-As an extra would either return the advocate for the gold standard or have our currency backed by another form of valuable in order tackle inflation which disproportionately affects lower income people.
These are just some ideas I had in mind, please let me know if you have any criticism or if you have something you would like to add.