And just in case you need me to be explicit, the lie is in the first tweet, ie that he had argued all along to just let Obamacare die out (by which he means deliberately "kill" it in order to force action), whereas in speech after speech he made clear that his plan was to "immediately" repeal and replace it.
In fact, in the tweet he sent literally before that one, he called for Obamacare to be repealed. Doesn't even leave time between his flip-flopping.
Roughly speaking, there's one lie or distortion of the truth per Trump tweet. And that's not exactly one-to-one, sometimes he managed to squeeze two or three into a single tweet to make up for the occasionally honest lines he comes out with.
Then there's his blatant and transparent lie over his role in the Birther Conspiracy; his lie about the GDP being negative (not even possible); etc etc etc.
I could go on, but to be honest I can't see the point; you're too wedded to this idea that Trump is the second Coming of Jesus to see him for what he truly is.