Because instead of making a case against him the Left has been busy manufacturing one hysteric lie after another. Once voters saw the hysteric out of control sore loser behavior of the Demcrate leadership, and their whores in the Fake Media, voters simply stopped listening to their infantile babble.
Yes
National Enquirer has more credibility than the slimes. Most objective observers figure the IRS would have found this long ago if legitimate.
Also the boy has cried wolf far too many times.