EMERGING MARKETS-Mexico, Colombia pesos drop as Trump comments weigh on oil

By Bruno Federowski BRASILIA, April 20 (Reuters) - The Mexican and Colombian pesos weakened sharply on Friday after U.S. President Donald Trump said crude prices were artificially high, hammering oil futures. Trump wrote in a post in Twitter that oil prices are "artificially very high" and "will not be accepted," triggering a selloff in oil markets. Currencies from oil-exporting economies followed along, with the Mexican and Colombian pesos both down over 1 percent. The Unit