get the facts straight
get (one's)/the facts straight
To know and understand the facts of a situation, or to present them in an accurate way. You better get your facts straight before you accuse her of anything. Then he needs to get his facts straight because I never said that! I'm not sure they got the facts straight for this story.
get the facts straightand have the facts straight
Fig. to have an understanding of the real facts. Ask a lot of questions and get all of your facts straight. Please be sure you have the facts straight before you make a decision.