While House Republicans are counting on state high-risk pools as one way to protect individuals with preexisting conditions from being charged more under their health care bill, some GOP senators say high-risk pools haven’t been all that successful and are more interested in reinsurance programs, which insurers and other industry groups have been supportive of. The House-passed American Health Care Act includes a $138 billion Patient and State Stability Fund that could be tapped to set up high-risk pools, reinsurance...