US Sec of State Rubio admits there are still more details to be worked out on Ukraine minerals deal, but expressed hope that meetings tomorrow with Ukraine officials go well

<div class=\"default-font-wrapper\" style=\"line-height: 1;font-size: 12pt; font-family: Verdana, Geneva, sans-serif;\">US Sec of State Rubio admits there are still more details to be worked out on Ukraine minerals deal, but expressed hope that meetings tomorrow with Ukraine officials go well</div>