All rats are
He’s not delusional.
If the Trump Admin “make changes” to Obamacare and it works, it’s still Obama’s program. If the changes don’t work, the Trump ruined Obama’s wonderful program.
If Obamacare is repealed, then he cannot ever take any credit for any health care programs that the Trump Admin implements.
Anything other than complete repeaal will leave the Democrats room to take credit for anything good that comes out of fixing this mess.