As a group of senators unveil their bipartisan proposal for immigration reform today and President Obama heads west this week to rally support for his own ideas, a separate bipartisan group of lawmakers in the House of Representatives is on the verge of finalizing its own designs for comprehensive immigration reform. The discussions, which top aides close to the talks discussed on the condition that they not be identified, are described as “Washington’s best-kept secret.” Last week, House Speaker John Boehner spilled the beans on the secret group, revealing that the lawmakers had been “meeting for three or four years...