IBM and Mitsubishi have joined the sponsors pulling their ads from Fox News host Laura Ingraham's show, ​according to reports Wednesday.

At this point, most of the biggest advertisers on "The Ingraham Angle" have cut ties, including Blue Apron, SlimFast and Ace Hardware. The exodus is part of an ongoing boycott of the show over Ingraham last month mocking Parkland school shooting survivor and gun control activist David Hogg for "whining about his rejection by several California colleges. 


The show's advertising time was quickly ​cut in half, and Tuesday's night show featured just 14 advertisers, with the biggest names including Red Lobster, WeatherTech and Sandals Resorts. 


Ingraham initially apologized for going after Hogg on Twitter. But he rebuffed her, and Ingraham took a weeklong vacation as the boycott ramped up. 


On returning to the show Monday, Ingraham ​denounced "the left's plot to silence conservatives." She called the "bullying on the left" "desperate" and Stalinist, and pledged, "We will never relent and we will never give in. Never."


BACKSTORY

Ingraham's advertiser troubles date back to March 28, when she took to Twitter to mock Hogg for being turned down by four colleges he applied to.

Hogg, who had recently publicly acknowledged the rejections, responded the next day by tweeting a list of Ingraham's advertisers and urging people to contact them.

The campaign quickly yielded results. Companies including Expedia, Hulu, Nestle and Ruby Tuesday cut ties with Ingraham's show.


Ingraham tweeted an apology, but Hogg rejected it, saying she needed to "denounce" Fox News' treatment of the Parkland students. Ingraham then took what she said was the pre-planned vacation.


After losing 17 classmates in the February shooting at Marjory Stoneman Douglas High School, Hogg became a leading gun control activist, and a harsh critic of the National Rifle Association and politicians it backs. He has traded barbs with conservatives over his positions.


Some conservatives, including commentator Ben Shapiro and Parkland student Kyle Kashuv, have defended Ingraham, and Fox News has so far stood by her.


"We cannot and will not allow voices to be censored by agenda-driven intimidation efforts," Fox news co-president Jack Abernethy said. "We look forward to having Laura Ingraham back hosting her program next Monday when she returns from spring vacation with her children."