>>3014680 pb
perhaps this explains the Polish AF plane? An advance party?
Statement from the Press Secretary on the Official Visit of President Duda of Poland
https://www.whitehouse.gov/briefings-statements/statement-press-secretary-official-visit-president-duda-poland/
"President Donald J. Trump and First Lady Melania Trump will welcome President Andrzej Duda and First Lady Agata Kornhauser-Duda of Poland for their first official visit to the White House on September 18, 2018."