Gold could surge over 90% and hit $4,000 so long as these two factors remain under control

Gold prices could reach $4,000, the CEO of US Global Investors told CNBC Monday. 
Frank Holmes said: "It's quite easy to see gold going to $4,000."
Holmes said rising monetary stimulus is the main reason gold prices can soar to that level. 
Gold broke $2,000 the first time last week, on expectations of a US stimulus bill. 
Another strategist said development of a vaccine and US presidential elections could reverse gold's rally.
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