Sean Hannity

In this March 4, 2016, file photo, Sean Hannity of Fox News arrives in National Harbor, Md.

(Carolyn Kaster | AP)

A Fox News host is going on vacation as advertisers are fleeing. Sound familiar?

Sean Hannity signed off his show Wednesday night, a day after the cable news network retracted a story he had been pushing. The "Hannity" host told viewers he was taking previously scheduled time off for the holiday weekend, but joked on Twitter that he expected speculation about possibly being fired.

"Uh oh My ANNUAL Memorial Day long weekend starts NOW. Destroy Trump/Conservative media breathless coverage starts! Did Hannity do last show?" Hannity tweeted late Wednesday.

But Fox News might not be laughing after seven advertisers pulled sponsorship of Hannity's show when he vowed to continue pursuing a conspiracy theory suggesting Democratic National Convention staffer Seth Rich was murdered for leaking documents to WikiLeaks. The source, a private investigator hired by a Dallas conservative, recanted his story and the network removed it six days later after complaints from the Rich family about politicizing their son's death.

Hannity, however, said he won't be silenced by "liberal fascism" and is "working harder than ever to get to the truth the family wants and deserves." He also accused Media Matters for America of targeting his advertisers "to get me fired" like Rush Limbaugh, Glenn Beck, Don Imus and Bill O'Reilly.

BuzzFeed reports Cars.com, military family insurer USAA, Crowne Plaza Hotels, home security company Ring, exercise bike maker Peloton, and mattress brands Leesa and Casper all pulled their commercials Wednesday.

"Cars.com's media buy strategies are designed to reach as many consumers as possible across a wide spectrum of media channels," Cars.com said in a statement. "The fact that we advertise on a particular program doesn't mean that we agree or disagree, or support or oppose, the content. We don't have the ability to influence content at the time we make our advertising purchase. In this case, we've been watching closely and have recently made the decision to pull our advertising from Hannity."

Hannity has insisted he would stay at Fox News for as long as the network wants him, despite recent changes that include the departures of O'Reilly, co-president Bill Shine, and the late Roger Ailes.

Mediate reports "The Five" co-host Kimberly Guilfoyle announced she'll be filling on for "Hannity" on Thursday and Friday as he takes the rest of the week off.

Hannity's vacation may have been previously scheduled, but the timing raises a red flag as "The O'Reilly Factor" was axed while O'Reilly was on vacation just a month ago. The top-ranked cable news host saw 60 advertisers flee when reports said he and the network paid out $13 million in sexual harassment lawsuit settlements to five women.

O'Reilly's 8 p.m. shift was filled by Tucker Carlson, who had previously replaced Syracuse native Megyn Kelly, who left in January for NBC. Kelly's 9 p.m. time slot is now filled by "The Five," while "Special Report with Bret Baier" and "The Story with Martha MacCallam" air from 5-8 p.m.

Hannity's eponymous show currently airs at 10 p.m. weeknights.

A Fox spokesperson said in a statement: "Like the rest of the country, Sean Hannity is taking a vacation for Memorial Day weekend and will be back on Tuesday. Those who suggest otherwise are going to look foolish."