Had dinner last night with a HRC supporter who switched to Bernie because He felt Bernie has already done irreparable damage to HRC campaign and she can't beat Trump Or ? with the hemorrhage

Had dinner last night with a HRC supporter who switched to Bernie because He felt Bernie has already done irreparable damage to HRC campaign and she can't beat Trump or who ever with the damage already done. He knows that the young voters are not going to support her in a presidential election. He compares the damage much much worse than Nader allegedly caused. So, he's in full swing for Bernie. Anyone else have similar story?