Donald Trump has already won one important primary, and that’s why he’s not going anywhere any time soon.

Every time Donald Trump says or does something that would destroy the careers of most politicians, he maintains or even gains supporters. It seems that nothing he does erodes his support. His voters are loyal, that’s for sure.

If you want to understand the Trump phenomenon and the durability of his campaign, you have to understand his voters and how they get their information. Many on the left mistakenly think that Trump supporters are “low-information voters.” Nothing could be further from the truth. Actually, it’s the opposite. They consume a lot of news and information, and almost all of it comes from their most trusted source — Matt Drudge.

Matt Drudge is all in for Trump, and he is making sure that his millions of daily readers are getting the news.

Drudge, of course, is the owner of the popular conservative news aggregator the Drudge Report, a site that records approximately 2 million unique visitors a day with about 700 million page views per month. His readers are loyal, too. A 2014 Pew Research Center study found that the Drudge Report is among the most trusted news sources among conservatives, while most mainstream media outlets register a very high level of distrust from that group.

His loyal readers don’t trust information coming from other sources, and that allows Drudge to carefully curate links to articles that help to further his pro-Trump point of view among that audience. The most pro-Trump conservative news site isBreitbart.com. Breitbart is so pro-Trump that some have charged that the Breitbart company is being paid by Trump for favorable coverage. The truth is that Breitbart’s loyalty is more to Drudge than it is to Trump.

Breitbart was founded by the late Andrew Breitbart, who was the Drudge Report’s first employee. He founded the Breitbart news site after leaving the Drudge Report, but remained personally and professionally close to Drudge. The Breitbart site established itself quickly as the go-to news source for grass-roots anti-establishment conservatives, with an assist from Drudge who regularly posted Breitbart article links on the Drudge Report. Over the years, the Drudge Report has directed millions and millions of readers to Breitbart stories.

It’s not hard to find evidence of Drudge’s success in gaining his audience’s support of Trump. Trump has won every post-debate online poll of Drudge Report readers — by a lot. Those polls attract hundreds of thousands of votes. After the last GOP debate more than 350,000 votes were registered and Donald Trump won 43 percent, followed by Ted Cruz with 27 percent. That audience loyalty is translating into strong support for Trump in the public scientific polls, too. Thanks to Drudge, Trump has led the GOP field nationally since July.