Far more Americans disapprove of President Donald Trump’s handling of several high-profile health care issues than give him positive marks, underscoring the challenge the president faces in claiming health care as a political asset in his reelection bid. The findings, from the latest Kaiser Family Foundation Health Tracking Poll , released Thursday, found Trump’s approval ratings on various health care topics — including how he has handled the cost of prescription drugs and protecting people with preexisting conditions — lag behind those on his overall job performance. (Kaiser Health News is an editorially independent program of the foundation.) Overall, 54% of adults disapprove of Trump’s handling of prescription drug costs, an area that he has repeatedly pledged to address and that federal officials see as crucial to his reelection pitch. In contrast, 3 in 10 said they approve. At the same time, 35% of Americans approved of Trump’s handling of preexisting conditions and the Afford...