By Nandita Bose, Andrew Mills and Akash Sriram DOHA/WASHINGTON (Reuters) -Elon Musk, who spent nearly $300 million to back Donald Trump's presidential campaign and other Republicans last year, said on Tuesday he will cut his political spending substantially,

In terms of political spending, I’m going to do a lot less in the future,” Elon Musk, 53, told the Qatar Economic Forum on Tuesday.