google Donald Rumsfeld's book for the details, but...
my father and many of his friends of that generation (boomers) who served in Vietnam hated Mccain and Biden. Mccain was a hot potato. every boat he landed on did everything within their power to get him re-assigned to a different boat. He was on his best of days a liability. When Mccain was "Captured" and put into the Hanoi Hilton everyone rejoiced at all the paperwork they no longer had to do. He was not a hero. Understand that.
Biden was the guy in the senate who leaked the information to the VC just like he did seal team six. This information was that the USA was out of the fight and retreating and withdrawing. This info came to the VC ~6 months too soon because of him. The hasty and unorthadox retreat cost god knows how many lives. When your enemy is hell bent on getting out and you know it you simply attack in waves. Imagine a beach with the oceanic waves crashing onto it as the tide rolls in. That was how the VC began their attack. It was costly. Many died. More Wounded. That was Biden's doing.
Biden and Mccain should've faced a firing squad. They're traitors to the country.
/rant
Democrats are Traitors. Yes, I said it.