Trump promised he would "drain the swamp", but instead he has been enlarging it.

He straight up said in one of his rallies that "drain the swamp" was a great soundbite but he doesn't care about that anymore.

Trump followers did not notice.

There's a lot Trump followers don't notice. Or, notice but don't care.

Indeed. Or honestly believe that saying something you won't actually do is a good thing as long as it's their team that does it.