“I’m supportive of Hillary Clinton,” Lloyd Blankfein said.
The study says Clinton would have a 95 percent chance if the election were this week.
Republicans in Wisconsin and Pennsylvania are trying to link their rivals to an email scandal.
Several Trump transition team members also have connections to Heritage.
'We probably all know guys" who speak like that, Donald Trump Jr. said.
"There's no reason in the world they would support Katie McGinty."
Trump is delivering a major policy speech outlining his first 100 days as president.
Mike Lillis 10/22/16 09:12 AM EDT
With Trump as the nominee, California Republicans may not come out to vote, analysts say.
OPINION | Nobel Prize winner's 1984 song fits the times we are in
Testing by authorities determined the powder to be not hazardous.