Republican presidential candidate Donald Trump is planning to appear with Polish President Andrzej Duda in the battleground state of Pennsylvania on Sunday, according to two sources familiar with the plan.

The campaign’s scheduled stop at the National Shrine of Our Lady of Czestochowa in Doylestown has been canceled. The reason for the change is unclear.

WARSAW, Poland — Donald Trump and Polish President Andrzej Duda are scheduled to attend the same event this Sunday in Pennsylvania ... Duda faced criticism back home in Poland for that visit, with critics worried it could hurt Warsaw's relationship ...