Donald Trump is considering waiting until after the November midterms to launch a third presidential campaign as he navigates a widening array of legal troubles and mounting concerns that some of his hand-picked Senate candidates may be weaker than he once thought, sources familiar with his thinking tell CNN.Donald Trump is considering waiting until after the November midterms to launch a third presidential campaign as he navigates a widening array of legal troubles and mounting concerns that some of his hand-picked Senate candidates may be weaker than he once thought, sources familiar with his thinking tell CNN.