The boxer shared their collab Wednesday, taking a stab at a viral dance made popular by Houston Rockets' Dillon Brooks ... something that's kinda blown up online.

Jake drags politicians for not reaching out to the youth through social media, saying those trying to garner the attention of young voters are missing out on a practically untapped market. He says Vivek is all about these types of connections, however.

BTW, Vivek also spoke about the lack of social media interaction from his fellow candidates, claiming they're all just scared because of the unscripted factor.

Jake and Vivek's video has gained a lot of attention online, but not everyone's as supportive of Jake's endorsement -- one commenter called the video "a terrible idea," while a handful of others claimed Vivek lost their vote just because he worked with Jake.

Haters. Just part and parcel of the social media landscape.

Vivek and Jake's criticism of the other candidates doesn't apply to at least one Democratic hopeful -- Marianne Williamson recently told us why moving to TikTok is helping her overcome what she sees as a blatant bias on TV.

She claims the cable media outlets won't give her airtime because she's running against President Biden.

As for Vivek, it'll be interesting to see if an endorsement from Jake will really make a difference in the polls -- don't forget, he got a stamp of disapproval from Eminem last month, who blocked Vivek from using his songs at his campaign events.