Apparently bill didn't know Trump was going to read the letter out loud. Probably bill just pumping him up as his friend the same way Trump pumped them through deflategate. Unfortunate it got out doesn't necessarily mean he supports him. Only way he could redeem himself is to endorse hillary.
I mean....if that letter is verbatim. Including 'hopefully making america great again' and fighting against that gosh darned liberal media.....this seems more like wishful thinking.