Donald TrumpDonald John TrumpTrump faces high stakes in meeting with Erdoğan amid impeachment drama Democrats worry they don't have right candidate to beat Trump Trump threatening to fire Mulvaney: report MORE's campaign manager, Paul Manafort, on Sunday said he thinks the presumptive GOP presidential nominee's ticket with Indiana Gov. Mike PenceMichael (Mike) Richard PenceTrump faces high stakes in meeting with Erdoğan amid impeachment drama Democrats announce public impeachment hearings with eight witnesses next week Haley seeks to quell talk she could replace Pence MORE will appeal to supporters of Sen. Bernie SandersBernie SandersDemocrats worry they don't have right candidate to beat Trump Overnight Health Care: Top health official defends contract payments to Trump allies | Vaping advocates confident Trump will turn from flavor ban | Sanders gets endorsement from nurses union Krystal Ball credits Gabbard's upswing in 2020 race to 'feckless' Democratic establishment MORE (I-Vt.).
 
"We think that the positions of Donald Trump, the man running for president, and Gov. Pence are in the mainstream of America," Manafort said on "Fox News Sunday."
 
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"And we’re confident that the combined Trump/Pence ticket is going to be very appealing to moderates, conservatives and, frankly, liberals who were supporting Bernie Sanders because of his campaign against the rigged system, the rigged Wall Street system, the rigged political system, the rigged trade system."
 
 
Sanders endorsed Clinton earlier this month.
 
Trump slammed Sanders after the endorsement and invited his supporters to back the Trump campaign.
 
"The messages of change that Trump campaigned on," Manafort said, "are those messages that were popular to Sanders supporters and we think will be an appeal to us."