After President Obama failed to show up at the Paris "Je Suis Charlie" solidarity march, I suggested that a Republican presidential candidate might take advantage of the opportunity and get on a plane to France. It might risk appearing like ambulance chasing, but it would have made an important point.
The same risk-reward calculus applies in Baltimore. Who will be the first Republican presidential candidate to get out of Manhattan, Iowa, Las Vegas, or New Hampshire and show up in Baltimore to make the point that it represents the failure of government policies and that a free-market approach and school choice and welfare reform and maybe even family values would help? Reagan campaigned in the South Bronx in 1980. Jack Kemp campaigned in South Central Los Angeles in 1996. If Ben Carson or Marco Rubio or Jeb Bush or Ted Cruz don't get to Baltimore before Hillary Clinton does, it will be a missed opportunity.