Elon Musk flirts with Colorado and Texas as US states battle to be the site of Tesla's HQ

· Tesla CEO Elon Musk is flirting with different US states as they lobby to be the site of the company's HQ.
· Musk has threatened to shift the firm's headquarters from California after getting embroiled in a fight with Alameda County, the site of Tesla's Fremont factory, over a shutdown order.
· He tweeted Saturday Tesla...