Nick O'Malley is the United States correspondent for The Sydney Morning Herald and The Age.
Nick O'Malley A prominent National Rifle Association advocate's 10-minute video suggests the parents of the reporters killed on air not be "emotional" in calling for gun control.
Nick O'Malley Political strategists have been blindsided by the surging grassroots support for outsider candidates, writes Nick O'Malley.
Nick O'Malley It is hard to fathom what must have gone through WDBJ7 control room producer Melisss Ott's mind when the gunshots were fired.
Nick O'Malley Even in his own angry manifesto, the motives of Vester Flanagan, the man accused of murdering a TV crew on air, were confused.
Nick O'Malley A timeline of the shooting of the Virginia television journalists by Vester Flanagan
Television journalists Alison Parker and Adam Ward fatally shot in on-air attack - now gunman dead too
Nick O'Malley A gunman who shot dead a reporter and a cameraman live on air during a morning TV program in Virginia, USA, before posting a video of his murders on social media as he fled, has been pronounced dead...
Nick O'Malley In a worrying sign for the Republican establishment, Donald Trump booted Univision anchor Jorge Ramos out of his news conference.
Nick O'Malley Abortion in the United States is set to become the social issue of the presidential race, with six of the leading Republican candidates banning it in all circumstances.
Nick O'Malley The opening seconds of the first Republican presidential primary debate were a gift to the party's most troublesome candidate, Donald Trump.
Nick O'Malley To the end Jon Stewart's comedic timing was perfect.
Nick O'Malley US President Obama's bold leadership on climate action along with moves from China and India to reduce carbon emissions mean the Australian government's arguments have evaporated.
Nick O'Malley The gobsmacking extent of tycoon Donald Trump's dominance over his rivals was the real surprise when Fox News announced its line-up for an eagerly awaited debate.
Nick O'Malley Three Detroit children have died as a result of playing with guns in recent months.
Nick O'Malley Republicans immediately declare their opposition, with some state governors expected to challenge plan in the courts.
Nick O'Malley Holding back tears, Amy Schumer has joined her cousin, the Democratic senator from New York and noted gun control advocate, Chuck Schumer, in calling for universal background checks for people...
Nick O'Malley He looks like he's having fun, he doesn't sound like other politicians and he thinks he's the best, but from a distance it can be hard to understand Trump's appeal.
Nick O'Malley US billionaires respond enthusiastically to presidential race with no effective limits on donations.
Nick O'Malley The United States had one mass shooting for every day of the first 204 days of 2015.
Nick O'Malley With just 18 months left in office, US President Barack Obama has set his sights on reforming America's criminal justice system.
Nick O'Malley Donald Trump continues to upset the Republican primary campaign, labelling one of his rivals, Senator Lindsey Graham, "an idiot" during a campaign rally, and then reading out the senator's mobile...