(You could replace FPTP with STV to keep the districts that elect representatives in the house intact.)

I'll start.

The Democratic party breaks up into the neoliberal and progressive parties.

The neoliberal party is where centrist candidates like Joe Biden and Michael Bloomberg go.

The progressive party is where progressive candidates like Bernie Sanders and Elizabeth Warren go.

The Republican party might lose a large part of their electorate to the libertarians, since many Republicans are more concerned about letting business prevail and don't really want cultural conservatism.

Andrew yang maybe also leaves the Democrats and founds his own party, the party for online reform.

The greens also become significantly more popular but they may have too much in common with the progressives.

The Senate could be changed to include as many seats as the house for proper representation.

I'm Brazilian, and personally (in the most radical, electability-indifferent and honestly meme-y campaign) would go for Bernie with the campaign finance and tax reform but with a platform for civical reform like putting STV as the nomination method for our chamber of deputies and supporting automating or funding new technologies to replace menial labor, like funding lab grown meat to replace all farming companies and labor now or robotics to automate large parts of the industrial and service sectors and use that money saved from not paying wages to people doing bad jobs to fund free universities and better schools/wages/welfare/infrastructure to the people once doing that work, along with adding civics and economics as subjects in school and always including notes as to where do you use the content you're learning, along with requiring subsidiaries to go independent or drop their branding. Clearly this isn't very realistic so feel free to expouse absurd policy.

The nice thing about electability being uncertain is that you can choose the candidate you think is best.

Unfortunately I have lost faith in my ability to decide that. Studying candidates' policies seems useless since, after all, Congress makes the laws. We are likely to see either stalemate or centrist legislation regardless.

Maybe I should decide based on foreign policy instead? Most people don't do that but I don't see why not. Any recommendations for interesting articles to read?

New debate, new thread. (Unfortunately somewhat late as the debate was streamed right at the time I wrote this post.)

The debate was being live streamed in CBS's channel in YouTube.

Twitter is one of the debate partners so expect a few questions from there.

The south Carolina primaries are due February 29th and there willl be no more debates until after super tuesday so this debate is pretty important.