Why does the Christian Right Always Fall for the Wrong Politician

It has gone on for decades after decade. A politician promises to put Christian Right ideas into law but it doesn't happen. The politician, or the nonprofit claiming to speak for it, takes money often from people, including the poor, and gives them nothing  much in return.

There is a litany of promising made but never delivered. Trump has claimed he has undone the Johnson Amendment prohibiting political advocacy from the pulpit by not enforcing it. It was not enforced by previous Presidents. He could claim some accomplishment if he had persuaded Congress to change to law. He made no effort to do that.

He bragged to anti abortion religious people he would stop Planned Parenthood from receiving federal funds for performing abortions. I read that Planned Parenthood's Annual Report shows the highest ever amount of federal money to perform abortions.

Religious people often say it is the Democratic Senate that stops the President from making good on his promises. The guy ran on his talent as a "deal maker." He wrote a book about his skills. Why has he not made deals.

He put effort into one legislative accomplishment, passing a tax cut. I would guess he worked to pass this because business lobbyists let it be known they would withhold support otherwise. They used this leverage to enlist the energy he seldom puts forward to pass legislation.

The religious right fails because it does not threaten to withhold support. It does the opposite. It pledges loyal support even without receiving what it asks for. Why should any politician spend political capital by working to pass controversial legislation when he can keep it all for free?