Ukrainian President Volodymyr Zelenskyy is expected to be in Washington, D.C., on Wednesday. The trip comes as lawmakers are debating a bill that includes billions more in aid for Ukraine.
The infamous July 25 call between Volodymyr Zelenskiy and President Trump made what was already a delicate diplomatic situation for the new Ukrainian president even more complicated.
The political upheaval that a call between the U.S. and Ukrainian presidents set off in Washington has thrust Ukraine into the limelight. Here's a look at how it got involved.