Question: What online real-estate investment platform was cofounded by a participant in the Trump campaign–Russian meeting?

<P0-S0> "Basket of deplorables" is a phrase from a 2016 presidential election campaign speech delivered by Democratic nominee Hillary Clinton on September 9, 2016, at a campaign fundraising event, which Clinton used to describe a faction of supporters of her general election opponent, Republican nominee Donald Trump. <P0-S1>  Clinton later said that she "regrets saying half [of Trump's supporters]", and the Trump campaign repeatedly used the phrase against her during and after the 2016 presidential election. <P0-S2>  Many Trump supporters adopted the "Deplorable" moniker for themselves. <P0-S3>  After Clinton's loss, some journalists and political analysts questioned whether or not the speech played a role in the election's outcome. <SEP> <P1-S0> Brad Parscale (born January 3, 1976) is an American digital media and political strategist. <P1-S1>  He served as the digital media director for Donald Trump's 2016 presidential campaign. <P1-S2>  Parscale began working for the Trump Organization in 2011, developing and designing websites, and creating and managing digital media strategies. <P1-S3>  In early 2015, Trump hired Parscale and his firm, Giles-Parscale, to create a website for his exploratory campaign. <P1-S4>  When Trump declared himself a Republican candidate in 2015, one of the first people he called was Parscale, asking him to update his exploratory campaign site into a "full-fledged presidential campaign website." <P1-S5>  Throughout the Republican primary, Parscale was responsible for the Donald J. Trump for President website, as well as for digital media strategy and online fundraising campaigns. <P1-S6>  In June 2016, Parscale was officially named digital media director for the Donald J. Trump for President campaign, overseeing all aspects of digital media and online fundraising, as well as traditional media strategy, like radio and television placements. <P1-S7>  In January 2017, Parscale, along with another senior Trump aide, Nick Ayers, formally launched America First Policies, a non-profit organization that promotes President Trump's agenda and White House initiatives. <SEP> <P2-S0> On June 9, 2016, a meeting was held in Trump Tower in New York City between three senior members of the presidential campaign of Donald TrumpDonald Trump Jr., Jared Kushner, and Paul Manafortand at least five other people, including Russian lawyer Natalia Veselnitskaya. <P2-S1>  The meeting was arranged by publicist and long-time Trump acquantiance, Rob Goldstone on behalf of his client, singer-songwriter Emin Agalarov. <P2-S2>  It was disclosed to U.S. government officials when Kushner filed a revised version of his security clearance form. <SEP> <P3-S0> Jared Corey Kushner (born January 10, 1981) is an American investor, real-estate developer, and newspaper publisher who is currently senior advisor to US President Donald Trump. <P3-S1>  Kushner is the elder son of real-estate developer Charles Kushner, and is married to Trump's daughter Ivanka. <P3-S2>  He was chief executive officer of the real-estate holding and development company Kushner Companies, and of Observer Media, publisher of the "New York Observer". <P3-S3>  He is the co-founder and part owner of Cadre, an online real-estate investment platform.