The only advice is: Get up and start working, start thinking and focusing on solving problems, start organizing and winning.
Any leader, any manager, anyone with life experience can tell you: If I do it for you, then nothing has changed.
Yes, Republican Party political tactics - pretty consistent since at least 2000 - have been effective. Why would they stop until someone stops them? Did you think those power-brokers, the vested interests, would make it easy? That is the nature of politics. It's not an exception; that's life; the enemy will fight.
FWIW, Obama avoided confrontation; he never confronted them and stopped them. Same with Hillary Clinton, same with Biden, same with most of the Dem congressional leaders. Why would anyone, except the most brain-dead or blind, follow leaders who won't even stand up for themselves, who exhibit cowardice when confronted with even the most vile, absurd foes?
And against them, you have the truth, good faith, good health and finances and everything else on your side. It couldn't be easier, in may respects.
I've said way more than enough. It's really an absurd situation. Stop talking to me and get to work.