If everything goes according to plan, this trip will mark Putin's eighth visit to the U.S. during his presidency, a role he has held for 20 years across two separate terms. Trump is hosting the meeting to try to push Moscow into a peace deal with Ukraine.

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.

Putin has been in the United States at least five times representing Russia's government. The last time Putin came to the U.S. was in September 2015, when he attended the United Nations General Assembly in New York City. Before that, Putin was here in 2005 and 2003, also for United Nations meetings.