If Cronkite was so
pivotal, then why didn't
some US black ops
mission just shoot him
with a Vietcong rifle?
No more bad news shows,
and the bad guy Reds
would get the blame for killing
a TV icon . . .
Time and U.S. News and World Report and the few conservative newspapers scattered around the country did a pretty good job.
LBJ was doomed even without Cronkite. The era's version of moveon.org was the underground newspapers like Berkeley Barb and East Village Other. The McCarthy wing of the Party was emerging strong. The "anti-war" radicals were going nuts on campuses. Civil rights radicals merged with "anti-war" radicals. Riots, curfews, and National Guard (and some regulars) patrolled cities. Ultra-liberal Democrat Party powerhouses like Fulbright were screaming about it being a "civil war."
Had it been Cronkite alone he would have been assassinated. It was LBJ's style. IMO.