Republicans almost certain to push through appointment following the ousting of Noem amid public backlash to her aggressive immigration approachSign up for the Breaking News US email to get newsletter alerts in your inboxHello and welcome to the US politics live blog.A Senate committee later today is expected to give a quick confirmation to Markwayne Mullin, a first-term Republican senator from Oklahoma, to lead the Department of Homeland Security (DHS).A top counter-terrorism official in the Trump administration resigned over the ongoing war on Iran. Joe Kent, who reported to Director of National Intelligence Tulsi Gabbard, said in his resignation letter that he “cannot in good conscience” support the conflict.Gabbard responded in a statement that did not refer to Kent directly, but argued that Trump “is responsible for determining what is and is not an imminent threat”.The House oversight committee subpoenaed attorney general Pam Bondi to appear for a deposition on the Department of Justice’s handling of the Jeffrey Epstein investigation.The Senate passed a measure to start debate on the legislation to restrict voting in US elections in a number of ways, by a vote of 51-48, along mainly partisan lines, with only Lisa Murkowski, the Alaska Republican, crossing party lines.During the annual St Patrick’s Day Shamrock ceremony at the White House, Ireland’s prime minister, Micheál Martin, gently made the case for free trade and a rules-based order before presenting Trump with a bowl of shamrocks.While Trump and his aides spent much of Tuesday deriding Kent, critics of the administration pointed out that Kent’s ties to rightwing extremists meant that he was never fit for the role in the first place. Continue reading...