Arizona Senate candidate Kari Lake has warned that "humanity on the line" if Donald Trump fails to win the next US Presidential election.

The Former US President secured his first victory in Iowa on Monday, after winning over 50 per cent of the vote at the state's caucus.

Arizona Senate candidate Kari Lake has warned that "humanity on the line" if Donald Trump fails to win the next US Presidential election.The Former US President secured his first victory in Iowa on Monday, after winning over 50 per cent of the vote at the state's caucus.FULL STORY HERE.{ai:summary}<p>Former Arizona Senate candidate Kari Lake declares the fate of humanity hinges on Donald Trump's success in the upcoming US Presidential election. With an initial triumph in Iowa, Trump gains momentum on his quest for a second term. #politics</p>

WATCH: Kari Lake warns of America's DOWNFALL if Trump loses election

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