how many more childish insults do we need to see hurled at a hostile foreign power before we acknowledge the senseless danger of it? this summer, jeff flake wrote a book entitled "conscience of a conservative: a rejection of destructive politics and a return to principle." that book foreshadowed jeff flake's retirement announcement today. because for most of us, it was very hard to read senator flake's thoughtful book and imagine him successfully running for reelection in a party overrun by trumpism. the last signs of jeff flake's op-ed piece that will be in "the washington post" tomorrow are "for the next 14 months, relieve to have had structures of politics, i will be guided only by the dictates of conscience. it's time we all say enough. we will be joined by some republicans in the thick of the trump versus flake and corker battle next. and later, you will hear