You can do a lot via budget reconciliation. Massive bills that build housing, or improve the ACA. We also now have clear precedent that you can tell the parliamentarian to fukk off. Long term I don't think it's great to continually use this, given it gives you a ten year window before expiration. Then again that just means no more dikking around. Build homes now. Now 3 years later while running for re-election. And that's going to require clear shifts in government red tape, regulations, etc. You can marry Mamdani shyt with "abundance" in this respect.
We need massive projects that create a lot of jobs and quickly build homes. I'd also look at heavily boosting Habitat To Humanity, which is really good at quickly building affordable homes.
My fear is the next dem admin focuses on impressing the MSNBC boomer crowd (my parents) with heavily scheduled/coordinated reversals of Trump shyt. Re-naming the Trump-Kennedy Center back to just the Kennedy Center. Returning the Department of War to the Department of Defense. Re-hiring government workers and rebuilding NIH and other agencies that were gutted. All things I support 100% but they could all be done on day one. I don't need this shyt sprinkled through an entire year while tangible shyt isn't addressed.