WASHINGTON – Top Republicans are divided on whether to support Donald Trump after the businessman all but secured the party’s presidential nomination. Some took to social media to disavow their membership in the party by burning their voter registration forms. Trump is deeply unpopular among many key voting blocs in the US. “If we nominate Trump, we will get destroyed… and we will deserve it,” South Carolina Senator Lindsay Graham said on Tuesday after Texas Senator Ted Cruz dropped out of the race, effectively clearing a path for Trump. Others, though, started to fall in line behind the candidate, saying Trump is vastly preferable to Hillary Clinton, the likely Democratic nominee, BBC news reported on Wednesday. Former Louisiana governor Bobby Jindal, who has been a harsh critic of the billionaire in the past, said he would support Trump in the general election. “There’s a lot about Donald Trump that I don’t like, but I’ll vote for Trump over Hillary any day,” said Ari Fleischer, press secretary for former president George W Bush. Considered a long shot when he launched his campaign in June, Trump has decisively won a large number of states across the US, defeating an experienced field of rivals. Ohio Governor John Kasich has vowed to remain in the Republican race, but trails far behind Trump in terms of delegates. Some Republican analysts fear Trump’s candidacy could have a crippling effect on other races, giving Democrats the chance to retake the Senate and possibly, but less likely, the House. Republican senators up for re-election in Democratic leaning states such as Kelly Ayotte in New Hampshire and Pat Toomey in Pennsylvania have sought to distance themselves from Trump. There are concerns about some of his policies on immigration and national security, like building a wall on the southern US border paid for by Mexico, a ban on Muslims coming to the US and the killing of the families of terrorists. “I am a fiscal conservative and I am a social conservative,” blogger Ben Howe said. “That will not change. But I will not vote for an egomaniacal authoritarian.” Donald Trump took a televised victory lap on Wednesday, and he gave Republicans concerned about their presumptive nominee reason to cringe. “I don’t think it’s imperative that the entire party come together,” he said during one interview. “I don’t want everybody.” The billionaire also stood by his call for a temporary ban on all Muslim immigration into the US – a policy popular among Republican primary voters but anathema to much of the general public.