Jared Kushner's brother is breaking his political silence following Trump's election - here's everything we know about the millionaire entrepreneur who's dating model Karlie Kloss

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• Millionaire entrepreneur and investor Joshua Kushner and his model girlfriend, Karlie Kloss, voiced support for March For Our Lives this weekend. 
• Kushner is the cofounder of the $2.7 billion healthcare startup Oscar Health.
• The entrepreneur has said he doesn't have any connections to the Trump administration, despite reportedly talking to his brother Jared Kushner, President Trump's aide and son-in-law, every day. 

The millionaire younger brother of White House advisor Jared Kushner is breaking his political silence following the election of President Donald Trump. 

Millionaire entrepreneur Joshua Kushner - the younger brother of Ivanka Trump's husband and White House advisor Jared Kushner - and his girlfriend, model Karlie Kloss, posted photos from the pro-gun-control March For Our Lives this weekend. 

Kushner and Kloss have remained quiet on politics recently, including their relationship with the Trump family, even though Kushner's brother is working in the White House. And, while the duo has dated for more than five years, they rarely speak publicly about their relationship.

Here's a look at Joshua Kushner's history, in light of the well-connected couple's rare political gesture: