538 had an interesting chat discussion about how the Clinton campaign should close out the election. Snuff out any potential Trump paths to 270 (FL, PA, OH, NC, NV, IA, NH), expand the map (AZ, GA, TX, UT, AK), or focus on shaky GOP Senate candidates (MO, IN).
No doubt Dems would love to have GA and TX now, but they are moving purple or even blue in the near term and won't yield any Senators this cycle. AZ is attainable now. Dems up slightly, investing $2M in ads, and bringing in Michelle Obama. Probably won't topple McCain, but blue (CA, NM) and purple (CO, NV, AZ) Southwestern states will give them sufficient Spanish language economies of scale to focus on the long slog for TX in 2018 and beyond.
Emphasize swing states with potential Senator pick ups (PA, FL, NC, NH, NV), IN and MO, and AZ. No bang for buck in both high $ states (TX and GA) and low end (AK and UT). Playing for 370 is tempting, but falling short and leaving Senate seats on the table would be foolish. Settle for 335 EVs and get as many Senate seats as possible. Add two Justices before midterms and dare the GOP to lose their dsyfunction before 2018 or 2020.