Australian Prime Minister Scott Morrison has defended his decision to fly to Sydney for Father’s Day despite COVID-19 lockdowns, which have prevented others from similar travel. “In politics, people like to take a lot of swings at you, and you get pretty used to it, but sometimes those jabs can be low blows,” Morrison told Sky News Australia on Tuesday. Morrison described comments by former national opposition leader Bill Shorten as a “cheap shot” after he criticised the prime minister’s judgement, describing them as appalling. Addressing accusations that he tried to cover up the travel by positing a months-old family photo to social media on Father’s Day, the prime minister said those suggestions were cynical. He said he joined a South Australian Liberal function online on Saturday from his office at his official Sydney residence, Kirribilli House. Morrison took an air force jet from Canberra’s national capital to his hometown …