The Trump-Harvard showdown is the latest front in a long conservative war against academia

President's attack on universities echoes efforts by Reagan and McCarthy - but experts say we're seeing much worse'

The showdown between Donald Trump and Harvard University may have exploded into life this week, but the battle represents just the latest step in what has been a decades-long war waged by the right wing on American academia.

It's a fight by conservatives that dates back to Ronald Reagan, the hitherto spiritual leader of the Republican party, all the way to McCarthyism and beyond, experts say, as the rightwing scraps to seize more control in a manner that is part of a standard playbook of authoritarianism".