A video released by a recently formed anti-Trump group on Monday sparked an overnight Twitter rampage from President Donald Trump. One of the group’s richest backers? Walmart billionaire Christy Walton. The Lincoln Project, a super-PAC founded by prominent Republicans including George Conway (husband of White House advisor Kellyanne Conway), released the video, titled “Mourning in America,” attacking Trump’s response to the coronavirus pandemic. The one-minute video postulated, “Under the leadership of Donald Trump, our country is weaker and sicker and poorer. And now Americans are asking, ‘If we have another four years like this, will there even be an America?’”...