The New York Democrat said Trump has tapped into racist voters.
"We have always been a nation of immigrants," she said.
Pennsylvania is a state targeted by Donald Trump.
He said primaries are more voter friendly than caucuses.
Julian Hattem 06/24/16 03:19 PM EDT
At least 75 meetings were kept off her official schedule, the AP found.
Sanders said he doesn't know if he and Clinton can come to terms.
Delegates Unbound is hoping to convince the GOP not to nominate Trump.
McConnell said Trump has made "a number of very significant gaffes."
The plan would let GOP convention delegates vote their "conscience" for any candidate.
Peter Schroeder 06/24/16 01:07 PM EDT
Trump is "rooting for the economic turmoil," a Clinton aide says.