Since no one can read into your brain, good acting can fool anyone. Look at Cohen, he was very much devoted service for all these years, even saying he would take a bullet for DJT. But when his illegal activities came to light, facing long jail time, he turned against DJT.
Manafort on the other hand should be commended for putting up a good fight with Mueller’s henchmen.
What we're seeing with those who've allied with President Trump is who has strong moral character when they're under attack as never before. It does seem that Melania, Manafort, Rick Perry, Ben Carson, the Huckabees, Rand Paul are among the first that come to mind. They get stronger and better when the attacks happen.
Cohen, Omarosa, and others miserably fail the test.