Hannity previously had an eerily similar role during the Trump campaign and administration, serving as the “shadow” chief of staff to the then-president and often holding late-night phone conversations in which he functioned as a sounding board for Trump’s policies.

Hannity also endorsed Oz’s Senate campaign, helping Oz launch his candidacy with a nearly ten-minute interview on his prime-time Fox show in late November. Hannity also reportedly lobbied Trump to endorse Oz, which may have made the difference if indeed Oz’s currently thin lead holds up through the vote count.

Hannity also used both his TV show and his radio show last week to attack the campaign of insurgent candidate Kathy Barnette, telling his audience that Barnette should not win in the primary due to her history of anti-Muslim and anti-LGBTQ statements. (Hannity did not acknowledge his own history of spewing similar bigotry.)

During one such segment trashing Barnette, Hannity reiterated his endorsement of Oz, saying he would “always tell you how I feel,” before interviewing Oz to continue attacking Barnette. But, while Hannity might acknowledge his candidate preference, he did not reveal that he had been advising Oz behind the scenes, nor admit his role in securing Trump’s endorsement for the candidate.

Oz’s revelation Tuesday night should also be placed in further context of how Hannity uses his Fox platform to spread misinforming Republican campaign talking points.

Previously released text messages between Hannity and then-White House chief of staff Mark Meadows revealed that Hannity took direct instructions on coordinating get-out-the-vote messaging on Election Day in 2020, and Hannity later described himself as being “at war with” the network’s purported news figures such as then-Fox News Sunday host Chris Wallace over the network’s declaration that Joe Biden had won the election. (The network undermined its own decision desk’s election call nearly 600 times in just nine days after that call was made.)

The texts have also shown the extent to which Hannity wears two faces along with his two hats. On the one hand, he publicly claimed the attackers who stormed the Capitol on January 6, 2021, were left-wing infiltrators. On the other hand, he urged Meadows during the attack to ask Trump to call off his supporters, and afterward, he worked on damage control with the White House.

Whether Oz even wins or loses in the final result is almost beside the point. Hannity’s role in elevating his candidacy and orchestrating another instance of the Trump-Fox feedback loop provides yet another example of Fox's evolution from its earlier role as a propaganda outlet on behalf of the Republican Party to a major engine of the party itself.