The image, used as a metaphor for Syrian refugees, was under copyright.
She will headline two rallies for Feingold's Senate bid.
Republican presidential nominee Donald Trump is scheduled to speak to the Polish American Congress in Chicago on Wednesday morning.
You can watch his remarks in the video player above.
"My legacy is on the ballot," Obama said.
Priorities USA will air a new spot in swing states highlighting the comment.
“You had somebody who basically insulted women and then doubled down,” Obama said.
Julian Hattem 09/28/16 10:09 AM EDT
It's unclear whether Clinton herself completed the training.
Katie Bo Williams 09/28/16 09:59 AM EDT
FBI Director James Comey insisted Wednesday that he would not comment on a pending referral.
He said his 2003 interview with Trump "could have left you with a different impression."
Naomi Jagoda 09/28/16 09:24 AM EDT
On the Senate, Ryan said: “I feel better about it today than I have in months.”