President Donald Trump's various U-turns are leaving Americans disillusioned -- especially after he was elected on vows of guaranteeing economic prosperity.

He has floated wanting to fire the Fed chair before backing off for now, and he slapped tariffs on China only to then promise compromise and mollification.

"There is no chance the US flip-flops on trade the past month were remotely planned," Joseph Grieco, professor of political science at Duke University, told AFP.

"It's been one improvisation after another."

In a Pew Research Center survey conducted in early April, when President Trump was already downgrading his trade war with many countries to focus his ire on China, just 40 percent of respondents approved of his job performance -- a seven-point slide from February.

With the exception of Bill Clinton and now Trump, US presidents dating back to Ronald Reagan have had an........

© International Business Times