Donald Trump reacts to Vladimir Putin endorsing Kamala Harris as next US president

Donald Trump has reacted to Russia's President Vladimir Putin endorsing his US presidential rival Kamala Harris.

During a rally in Wisconsin, Trump said he didn't believe Mr Putin was being serious, after the Russian president said he would prefer Kamala Harris to be president over him.

Mr Putin said Kamala Harris had an "infectious laugh" and claimed that Mr Trump had imposed more sanctions on Russia "than any other president has ever imposed before."