He was a failed Navy pilot. He has nothing to show for his years in the Senate except these highlights:
He'd be doing stuff like working with ex-senator Feingold on the far-left on campaign finance reform, which he did and it was a failure as a law. Or he'd be considering accepting Kerry's offer to run as his democRAT running mate in 2004. Or he'd be thinking about switching to the democRAT party like he claimed he almost did in 2000. Or he's be be getting caught as one of the Keating Five after offering quid pro quo favors. Or he'd be meeting with the head of ISIS and his fighters, treating them like friends of the US in the war in Syria, trying to get them weapons to kill Americans.
In other words, he is and has been a traitor to his party for years. His recent calls for the Senate to conduct business with the regular order, is a just ruse to hide his failure to support positions he was re-elected on. He has personal contempt for Trump. Plain and simple. Trump dissed him as not being a real hero during the campaign and he is still peeved. Without the POW hero status, this guy has nothing to show for his career.
They will have to drag McLame out of the Senate because like many career politicians in DC, he has no other life. He needs to retire but I'm sure he would die soon afterwards. His final goal in the Senate is to obstruct the president of his own party and to lie about why he's against policies he has been for previously.
On the Dem side of the aisle, McCain would just be one among many. He isn’t personally intellectual, interesting, witty or anything that would make him the media darling that he has been for years. He is the dishonest media’s favorite as the Republican who goes against their interests time after time.