A defiant Liz Cheney said she regretted voting for Donald Trump in November as she repeated her vow to do "everything necessary" to prevent him from returning to the Oval Office in 2024. Ousted from her Republican leadership role in Congress, the daughter of former Vice President Dick Cheney rounded on party colleagues for caving into Mr Trump. Her remarks, in an. interview on ABC's "This Week" Sunday underlined the widening Republican rift between supporters and opponents of the former president. Last week more than 100 former Republican officials signed a letter saying they would set up a third party if the GOP does not break with Mr Trump. Ms Cheney, 54, faces re-election to her Wyoming congressional seat next year. Two Trump supporters have already announced plans to try to oust her from a district she has represented since 2016. Other Trump opponents, including Adam Kinzinger of Illinois, are also under threat from the former president's supporters.