American officials quickly discovered a major snag in planning for the summit: summertime is peak tourist season in Alaska, and options both available and equipped to host the two world leaders were severely limited.

Whether the U.S.-Russia summit can lead to a deal to produce peace in Ukraine more than 3 1/2 years after Moscow’s invasion remains to be seen.

The White House is now describing Friday's planned summit in Anchorage, Alaska, between President Trump and Russian President Vladimir Putin as a "listening exercise." CBS News senior White House and political correspondent Ed O'Keefe reports.