Maryland Attorney General Brian Frosh has filed or joined more than 30 lawsuits against the Trump administration. A federal appeals court just threw out the big one that alleged the president violates the constitution when he gets profits from the Trump Hotel.Frosh argues many of the challenges have succeeded. And he contends they don’t keep his office’s lawyers from taking on big local problems, like the nursing-home company he sued after it evicted a cancer patient when her insurance switched to much lower reimbursement.