"They" could refer to the mostly liberal press or the DNC, or possibly both since the lines between the two have been effectively blurred. It seems left leaning people are having a hard time understanding that concept.
It's my belief that Hillary was supposed to be president in 2008 but between the press fawning over Obama's look, background and oratory skills - and Ted Kennedy throwing his weight behind Obama at a critical time in the primary - it didn't work out that way. He was barely vetted outside of the inner workings of the DNC and less qualified than she was, and that's saying a lot.
So, calling Trump a fake president is interesting ....considering the dems put up a green Chicago city community organizer/politician who had barely been in office at the national level and voted on nothing....and a former First Lady whose husband was impeached, became a carpetbagger to become senator, quit being Secretary of State because it was only going to get worse and generally was an unfit candidate due to email scandal and 100 million dollars of foreign payments to her "foundation".
Trump is flawed but at least he's real and pro American interests.