How and why did John McCain's temper not get press?

How and why did John McCain's temper not get press? Now I see and read that it is off the charts known, and I had zero idea about it...I gave this guy a lot of money for his election campaign. He clearly has PTSD! He needs to step down. Cursing like school boy at a female reporter on jet flight. My God. Rand is correct, thank God he is NOT in charge...There is a real problem here,