Beto O'Rourke has dropped out of the race to the White House.
The Democratic nominee announced in a Tweet that he is ending his presidential campaign.
The 47-year-old is a former Texas congressman.
He launched his bid to run for president earlier this year after failing to replace Texas Republican Senator Ted Cruz.
Iran and US step up attacks and threaten to escalate
Iran launched missiles and drones on US military sites in Kuwait and Bahrain early on Sunday, shortly after President Donald Trump threatened to wipe out the Iranian leadership if they did not stick to the interim agreement to end their war.
Ukraine hits two Russian oil refineries overnight
Ukraine hit two Russian oil refineries in the regions of Krasnodar and Yaroslavl overnight, President Volodymyr Zelenskiy said on Sunday, as Kyiv ramps up pressure on Russia's fuel supply with its drone fleet.
Australia toughens kids' social media ban
Australia said on Saturday it would double the maximum penalty it can impose on tech firms found to have failed to uphold a ground-breaking social media ban for children, as evidence mounts that the ban has had little effect on teen use.
Strong earthquake hits Hindu Kush, shaking Afghanistan and Pakistan
A strong earthquake struck Afghanistan's Hindu Kush region on Saturday, the European Mediterranean Seismological Centre said, sending out tremors that could be felt from the capital Kabul across the border into neighbouring Pakistan.
Serbian President Vucic says he will resign within weeks
Serbia's populist president Aleksandar Vucic, under pressure after months of anti-government protests, said on Saturday he will resign within weeks and the country will hold early presidential and parliamentary elections.
