Former President Donald Trump won the Michigan Republican primary Tuesday over rival Nikki Haley.

The race was called at exactly 9 p.m. - when all Michigan's polls were closed - with Trump leading Haley 65 percent to 30.9 percent, with 12 percent reporting. 

Haley's campaign said Tuesday night that Trump's 30-plus point win still represented weakness heading into the general election. 

'Joe Biden is losing about 20 percent of the Democratic vote today, and many say it's a sign of his weakness in November. Donald Trump is losing about 35 percent of the vote. That's a flashing warning sign for Trump in November,' Haley's spokesperson Olivia Perez-Cubas said in a statement. 

President Joe Biden lost votes in Michigan to 'uncommitted' due to his support of Israel's war on Hamas, with the state's Arab American communities appalled by the heavy death toll of Palestinian civilians. 

The 'uncommitted' vote was hovering around 15 percent. 

'Since Trump became president in 2016, he lost Michigan Republicans the state House, state Senate, and Governor's mansion. What was once a beacon for the conservative cause, the Michigan Republican Party is now fractured and divided,' Perez-Cubas said. 

'Let this serve as another warning sign that what has happened in Michigan will continue to play out across the country,' the Haley campaign said. 'So long as Donald Trump is at the top of the ticket, Republicans will keep losing to the socialist left. Our children deserve better.' 

Trump, however, was winning more votes than Biden, despite Haley earning about 30 percent of those cast by Republicans in Michigan, with 19 percent of the vote in.

He called into the Michigan GOP's watch party in Grand Rapids before the official results were called.