Midterm elections are just a couple weeks away, and record donations are flowing to congressional candidates. All told, we're looking at $5 billion this year, up from 2016's congressional races and President Barack Obama's first midterms in 2010. One reason? Billionaires are lavishing more of their cash on politicians. Then, FICO scores are getting a makeover, and that could mean a boost for your credit. Plus, recreational marijuana has been legal in California for less than a year, and the industry's already seeing a tech disruption. We'll take you inside the emerging pot-on-demand business.