text:  ABC News. I'm Dave Packer. President Biden returning to Camp David, where before Thursday he spent a week in debate preparations. Today, he's huddled with family and close advisers who were being told by a senior administration official are urging him to stay in the presidential race after his disastrous performance in that debate. Meanwhile, Donald Trump's top advisers are planning to overhaul and shorten the Republican Party's platform so that it will be, quote, in line with the former president's vision for America's future, according to a memo obtained by ABC News.