Because I am a sane person as well as being a Democrat, I would not really notice this taking place over the years.
For years, for decades, Trump obsessively watched cable news, Fox news and other right wing so-called news sites. He never worked a day in his life. All he does is watch the news. Millions of Republican voters were watching the same bullshit and believing it.
When Trump ran for president he knew exactly what the Republican voters were watching and listening to. He told them exactly what they wanted to hear. The Republican voters said “Wow!! Finally we have found someone who tells the truth. Trump gets it and we are all in!”
Bottom line, Republican voters had let themselves be brainwashed for decades and Trump came along and completely verified what they had been watching and believing for years. He became their hero, their savior.
And now, he will be their downfall as we watch the Republican Party slowly sink into the toilet, to be flushed away over the next few years.