She made the statement during a debate when asked about potential threats to US national security in South China Sea

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Asked whether Taiwan and the South China Sea threaten US national security, Republican fill-in senator Darline Graham hesitated. “I’m just going to be honest here,” she told Tuesday night’s debate audience. “I’m – not that informed on national security, so – but I do support the military.”

Gasps, and boos, rolled through the opera house hosting the only debate before next week’s Republican runoff – a race to succeed her brother, Lindsey Graham, who was one of the Senate’s most committed rightwing foreign policy hawks before his sudden passing in July. She did not retreat.

Result tees up marquee race in US midterm elections, which could decide if Republicans or Democrats control Senate

Incumbent Dan S Sullivan, the US senator, advanced in Alaska’s non-partisan primary race for his seat on Tuesday alongside Mary Peltola, a former Democratic congresswoman.

With the top four candidates moving forward from Alaska’s open primaries to the general election, the Associated Press reported that Sullivan and Peltola had qualified for November’s general election.