Agreed- The problem Trump and Cruz have in attacking each other is each needs the other’s voters. Negetive ads may make someone double think support, but in a multi-candidate race does not guarantee support for you....
Trump went nuclear with his democrat talking point attacks on Cruz and the other Republicans early on in this primary. Supporters of Cruz and others have very hard feelings over this and will not be easily persuaded to forgive and forget. I know personally Trump will never have my vote. That’s the problem with going nuclear. Its mutually assured destruction heading into the general election. It doesn’t matter how big Trump’s or Cruz’s cross over appeals are if they can only pull half of the republican electorate.
Problem is, it appears most of Cruz supporters will go to Bush if Cruz crashes...