Covering for the Biden family by trying to suppress rather than report on The Post’s scoops may prove expensive for a host of US media institutions — especially the privileged social-media companies.

A majority of voters say the media intentionally buried The Post’s October bombshell about Hunter Biden’s laptop to help his father Joe Biden’s political campaign, a Rasmussen Reports poll showed Tuesday.

The poll found 52 percent of likely voters believe media companies provided scant coverage of the laptop story — which shed light on Hunter’s Ukrainian and Chinese business activities and suggested Joe Biden knew about them, despite his denials — in order to boost Biden’s prospects in the election, then a few weeks off. Only 32 percent disagreed.

Among those who said they followed the news “very closely,” more than three in four (76 percent) say the media ignored the story to help Biden.

A clear majority of voters (56 percent) also think it’s “likely” the president-elect was aware of his son’s ties to a corrupt Ukrainian business and to China, including 43 percent who think it’s “very likely.”

Meanwhile, Federal Election Commission records reviewed by Fox News reveal that top execs at Facebook and Twitter gave tens of thousands of dollars to Biden’s campaign — and “zero” to Team Trump. Many officials, like Facebook’s Erin Egan and Twitter’s James Kelm, gave the maximum, $5,600, to Biden during the primary and general elections. And this follows reports in October that found employees at the two companies sent more than 90 percent of their donations to Democrats.

Can it really just be some freaky coincidence that these plainly pro-Biden Big Tech firms also suppressed a story that might have hurt his prospects? Please.

Their aim was clear: They censored the story, with Twitter even suspending the accounts of those (including this newspaper) trying to share it, to protect him. (Their ideological bias also explains why they tend to “flag” or suppress pro-conservative content generally.)

Last week, Hunter Biden all-but-confirmed the laptop story by admitting the feds were probing him, and Fox News had previously confirmed that the laptop was part of an FBI probe. So there was never any good justification for burying this news. (The “this may be Russian disinformation” excuse never had any basis in fact.)

With the election over, news media that followed Facebook and Twitter’s lead in suppressing the report are finally running it. But they’ve taught the public not to trust them. And the social-media firms provided damning evidence that they qualify as publishers, not “platforms” that can escape accountability for their content.

Sure, Facebook, Twitter and other media are private companies and can do whatever they like. But news gatekeepers have an ethical duty to present all the important news, even when it makes their favored candidates look bad.

Getting caught keeping Americans in the dark is an extremely bad business move.