Again, Trump seeks foreign help to probe Biden

US president Donald Trump has again invited foreign interference in a US presidential election.

Trump publicly called on china to investigate his democratic political rival Joe Biden, a repeat of the request that had already triggered an impeachment inquiry in congress.

He said both China and Ukraine should look into Mr Biden, a democratic presidential frontrunner, and his son.

The democrats accuse Mr Trump of dangling military aid as a way to press Ukraine to dig dirt on Mr Biden.

In a swift response Mr Biden said the idea of Donald Trump attacking anyone’s integrity is a joke.