Investors fear that market turmoil will no longer rein in Trump

This is an on-site version of the White House Watch newsletter. You can read the previous edition here. Sign up for free here to get it on Tuesdays and Thursdays. Email us at whitehousewatch@ft.comGood morning. High-stakes talks between the US and Ukraine are under way in Saudi Arabia. We’ll have further updates on the meeting later in the day but for now, let’s get into:After yesterday’s brutal stock market sell-off, investors are scared that Donald Trump has a higher tolerance for..