Donald Trump defended the ongoing war with Iran as a necessary move to block nuclear capabilities while rejecting accusations that it violates his campaign pledges.He reiterated unsupported claims of widespread fraud in California primary voting following the termination of a controversial $1.8 billion government fund.The exchange with Kristen Welker became increasingly tense as the president dismissed inquiries regarding evidence for his allegations against the election process.Technical difficulties and weather concerns forced an early end to the discussion, though a future interview was tentatively agreed upon by the participants.