Right, so how do you determine how much you have to say to tell the "truth"? If someone makes a claim about an economic policy, is it "lying by omission" to not

Right, so how do you determine how much you have to say to tell the "truth"? If someone makes a claim about an economic policy, is it "lying by omission" to not talk about the impact previous similar policies have been enacted? Or is that inserting your bias? If you aren't telling people the facts behind the claims then are you telling the truth? Which facts you decide to share or not share can be biased.