Although the bizarre conspiracy theory group called QAnon has only two members elected to Congress, it has two members in Congress. That was not a typo. The KKK–so far as we know–does not have any members in Congress. Nor do the Proud Boys. But QAnon seems to have a strange power over the Republican party, so much so that most of its members voted to overturn a fair and free and amply verified presidential election.

One of the two major parties has succumbed to a cult with a mad ideology.

The Washington Post describes the curious hold that QAnon has over the Republican party in this article.

The siege on the U.S. Capitol played out as a QAnon fantasy made real: The faithful rose up in their thousands, summoned to Washington by their leader, President Trump. They seized the people’s house as politicians cowered under desks. Hordes wearing T-shirts emblazoned with the “Q” symbol and toting Trump flags closed in to deliver justice, armed with zip-tie handcuffs and rope and guns.

The “#Storm” envisioned on far-right message boards had arrived. And two women who had died in the rampage — both QAnon devotees — had become what some were calling the first martyrs of the cause.

The siege ended with police retaking the Capitol and Trump being rebuked and losing his Twitter account. But the failed insurrection marked a grim milestone in how the paranoid conspiracy theory QAnon has radicalized Americans, reshaped the Republican Party and gained a forceful grip on right-wing belief.

Born in the Internet’s fever swamps, QAnon played an unmistakable role in energizing rioters during the real-world attack on Jan. 6. A man in a “Q” T-shirt led the breach of the Senate, while a shirtless, fur-clad believer known as the “Q Shaman” posed for photographers in the Senate chamber. Twitter later purged more than 70,000 accounts associated with the conspiracy theory, in an acknowledgment of the online potency of QAnon.

The baseless conspiracy theory, which imagines Trump in a battle with a cabal of deep-state saboteurs who worship Satan and traffic children for sex, helped drive the day’s events and facilitate organized attacks. A pro-Trump mob overwhelmed Capitol Police officers, injuring dozens, and one officer later died as a result. One woman was fatally shot by police inside the Capitol. Three others in the crowd died of medical emergencies.

QAnon devotees joined with extremist group members and white supremacists at the Capitol assault after finding one another on Internet sanctuaries: the conservative forums of TheDonald.win and Parler; the anonymous extremist channels of 8kun and Telegram; and the social media giants of Facebook and Twitter, which have scrambled in recent months to prevent devotees from organizing on their sites.