US presidential candidate Donald Trump says he would not grant protection from Russia to NATO partners who do not meet their financial obligations. The former US President said this on Saturday (local time) at a campaign event in the US state of South Carolina.

US President Joe Biden's White House reacted immediately. "Encouraging attacks by a murderous regime on our closest allies is outrageous and completely insane," spokesman Andrew Bates said in a statement. Trump wants to be re-elected president this November and is fighting for his candidacy in his party's primaries.