MICHAEL BARONE: Still saddled with the politics of the Seventies.

Not since James Monroe left the presidency in 1825, 48 years after he fought in the Battle of Princeton, has America had political leadership with careers running so far back in the past. Our current government leaders have political pedigrees going back to the 1970s.

Consider the Senate. Democratic leader Chuck Schumer was first elected to the New York Assembly in 1974. Republican leader Mitch McConnell was elected Jefferson County judge — the county administrator for Louisville, Ky. — in 1977.

Consider the House. Democratic leader Nancy Pelosi was elected Northern California Democratic Chairman in 1977. Democratic Whip Steny Hoyer was elected to the Maryland Senate in 1966 and was elected state Senate president in 1975.

Or how about California’s leading Democrats? Senator Dianne Feinstein was elected to the San Francisco Board of Supervisors in 1970 and became mayor in 1978. Governor Jerry Brown was elected California secretary of state in 1970 and to his first term as governor in 1974.

Technically, President Trump is an exception, never having held public office until 2017. But his public career began in the 1970s, a terrible decade in which New York City’s population fell by 823,000. That’s when Trump refocused his father’s business from the outer boroughs, whose white ethnics were fleeing into Manhattan, where low real estate prices, other people’s money, and political pull enabled him to flourish, in anticipation of an eventual upturn.

It’s when Trump developed his disdain for establishment liberal opinion and penchant for outrageous tabloid-style disparagement thereof. That left him an odd man out in the Reagan/Bush/Clinton high contentment years and a natural fit for post-2007 discontent.

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