Trump allies attack Biden for allowing Ukraine to use US missiles inside Russia

President-elect's surrogates accuse president of seeking to spark world war three' over decision to allow limited strikes

Allies of the president-elect, Donald Trump, have lashed out angrily at Joe Biden for his decision to permit Ukraine to use long-range US missiles to launch attacks inside Russia for the first time, in what the Kremlin has termed an escalation" in the war.

Key Trump surrogates, including his son Donald Trump Jr, hardline congressional Republicans, and other backers have accused Biden of seeking to spark world war three" before Trump's presidential inauguration in January.