Silicon Valley billionaire and Donald Trump supporter, Peter Thiel, is reportedly planning a 2018 bid for California governor.

Three Republicans, who are familiar with his thinking, told Politico that the PayPal co-founder and early Facebook investor, has been discussing a potential run with a few advisers.

But some who know of Thiel's plan to enter the race have their doubts he'll go through with it.

Silicon Valley billionaire and Donald Trump supporter, Peter Thiel (pictured) is reportedly planning a 2018 bid for California governor, according to three Republicans, who are familiar with his thinking

Mainly because California is an unfriendly territory for a Republican who is outspoken about his support for Trump.

The 49-year-old is also a very private figure, sources told Politico.

However, the entrepreneur has not ruled running for governor out of his long-term plans.

Earlier this week, in an interview with the New York Times Thiel talked about why he supported Trump.

'Everyone says Trump is going to change everything way too much,' Thiel told the Times.

'Well, maybe Trump is going to change everything way too little. That seems like the much more plausible risk to me.'

But some who know of Thiel's (right) plan to enter the race have their doubts he'll go through with it. Mainly because California is an unfriendly territory for a Republican who is outspoken about his support for Trump. However, he has not ruled out a 2018 bid for office

Thiel, who also spoke at the Republican National Convention (pictured), last summer, was portrayed as an outcast in Silicon Valley for supporting Trump and giving him $1.25 million

Thiel told the Times that 'even if there are aspects of Trump that are retro and that seem to be going back to the past, I think a lot of people want to go back to a past that was futuristic - The Jetsons, Star Trek. They're dated but futuristic.'

Thiel, who also spoke at the Republican National Convention, last summer, was portrayed as an outcast in Silicon Valley for supporting Trump and giving him $1.25 million.

Last month, it was reported that Thiel was believed to be giving lectures on heterodox science at The Berkeley Institute, a private academic institution in California, according to The Verge.

The institute’s website listed a course on heterodox science with a special ‘guest instructor’.

The site says the instructor is an ‘author and founder of IMITATIO’, which describes itself as ‘a force to press forward the consequences of Rene Girard’s remarkable insights into human behavior and culture.’

Thiel and French philosopher, Rene Girard, and another devotee, Robert Hamerton-Kelly, founded IMITATIO.