With regard to 'voter fraud', President Trump is doing the same as he is with his 'wall' and 'waterboarding' - he is making a load of noise in completely the wrong arena.
The election is over, there is zero evidence of voter fraud, but PT has to make a big noise to show everyone that he is 'on it' - even though it doesn't matter because it's an irrelevance.
And 'the wall'. He is still make masses of hot air about that, even though anyone who knows the first thing about immigration from Mexico - and I do, so I'm pretty sure he should - knows that the vast majority of illegal immigrants come into the In visas, and then stay on illegally. They don't stroll across the border, so building a wall won't stop them, because they don't come in illegally in the first place!
And 'waterbaording' - there isn't a snowball's chance in hell that Congress will allow the return of torture like this, but he has to make a big noise about it because he thinks it makes him look assertive, and on top of foreign policy.
President Trump has a vertical learning curve in grasping what being President, instead of a windbag candidate, actually means.