The words ‘FEAR’ and ‘INTIMIDATION’ come to mind...
I second what you have said. Because anyone who is a well-known conservitive, with some exceptions, if they do NOT endorse Sen. McCain, then they are very much AFRAID that he will take REVENGE against them if in the event that if he is elected. Sen. McCain will stoop so low to do just that.
"..a wise prince should establish himself on that which is his own control and not in that of others; he must endeavor to avoid hatred, as is noted." He also says "It is best to be both feared and loved; however, if one cannot be both it is better to be feared than loved."